Index

Back Top Print

[EN - ES - FR - IT - PT]

INTERNATIONAL THEOLOGICAL COMMISSION

Caring for our Common Home:
A responsible and fraternal response to the Triune God

 

Presentation by the Secretary-General

 

Faced with the urgency of the ecological crisis, the International Theological Commission offers a reflection intended to help elucidate ‘the theological foundation for the care of our common home beyond the extremely grave situation in which we find ourselves’, inasmuch as this is ‘inscribed in God’s plan for creation’ (no. 6). This is the aim of the latest document published by the ITC.

The first of the three chapters focuses on the message that emerges from the heart of the Christian faith: the Trinitarian face of God revealed in Christ. Indeed, contemplation of this reveals the importance ‘in the formation of a Christian culture, of discovering in the whole of creation the Trinitarian imprint’, highlighting the ‘relational character of creation as a fundamental guiding principle of integral ecology’ (no. 33). This is a truth rooted in revelation and illustrated by the great spiritual and theological tradition. This precious legacy is today articulated in terms of its strategic relevance by the Church’s social teaching, as recalled by Pope Leo XIV in the Encyclical Letter Magnifica humanitas: If the living God is ‘love in relationship’, every human person is constitutively ‘created for relationship’, having been conceived and willed by God ‘to enter into communion with him, with others and with creation’ (MH nos. 48 and 50).

The second chapter is devoted to a reinterpretation, in this light, of the relationships constitutive of the human being; it re-examines the Book of Genesis to discern its meaning and significance in the light of the event of Jesus Christ. This leads to the proposal of an integral anthropology that transcends the dichotomy between predatory anthropocentrism and radical biocentrism or ecocentrism. The Christian vision highlights how the distinctiveness of the human being is expressed in the dignity and mission received from God, which commit the person to ‘care for creation, whose planetary well-being contributes to their own personal and communal fulfilment’ (no. 102).

The third chapter outlines the foundations of an ecological spirituality before setting out some fundamental ethical principles that can inspire and guide the care of our common home.

Of particular note is the proposal to ‘understand sin against the environment in a similar way to how the notions of social sin and structures of sin have become established’ (no. 95). The dialogical style in which the theme is presented is also to be commended: it takes into account certain contributions from the Christian East and the Orthodox Churches; the resources offered by different religions; the findings of scientific knowledge; and the insights put forward by philosophical thought.

Piero Coda
Secretary General of the ITC


Contents

Preliminary Note

Preface: A Threefold Transformation

Chapter I. Our Common Home: The Work of the Triune God

1 Creation: the Work of the Triune God
2 The Trinitarian imprint in creation

2.1 The possibility of perceiving the imprint of the Trinity in creation

2.1.1 The teaching of some Doctors of the Church
2.1.2 Implications from a relational perspective

2.2 Sacramentality
2.3 Eschatological purpose
2.4 Trinitarian ontology and interrelational communion
2.5 Ecological implications of the Trinitarian imprint on creation

3 In dialogue with certain scientific and philosophical views of the cosmos

3.1 The scientific view of the cosmos

3.1.1 A brief overview
3.1.2 An open dialogue with science

3.2 In dialogue with other worldviews

3.2.1 Some philosophical proposals
3.2.2 The Christian theological perspective in dialogue

Chapter II. The Human Being in our Common Home

1 God’s original plan for human beings

1.1 A theological reading of Genesis 1: in the image and likeness of God

1.1.1 Image and likeness
1.1.2 Blessing

1.2 A theological reading of Genesis 2: primordial sociality
1.3 The task inherent in the original plan
1.4 A teaching from an ecological perspective: the sabbatical principle

2 Why are we inflicting such grave harm on our common home? The sin against creation

2.1 The breach of the original mandate
2.2 Highly alarming data on ecological deterioration
2.3 A bold diagnosis: sin against creation and the Creator

3 The Christian proposal

3.1 Two unacceptable extremes: predatory anthropocentrism, and biocentrism and ecocentrism
3.2 The human being: steward and servant of creation

4 Summary: The place and mission of human beings in our common home

Chapter III. Care for our Common Home

1 From our relationship with God: the logic of the Jubilee
2 From our relationship with ourselves: outlines of an ecological spirituality
3 From our relationship with creation: ethical principles for the care of our common home

3.1 Reverence
3.2 Responsible care
3.3 Listening to the cry of the Earth and of the poor
3.4 Respect for life
3.5 Asceticism and fasting
3.6 Differentiated commitment at local level

4 From our relationship with our neighbour: ethical principles for nurturing our relationships with others

4.1 The sanctity of human life
4.2 The universal destination of goods
4.3 Fraternity and neighbourliness
4.4 Mercy and compassion
4.5 Preferential option for the poor
4.6 A Retrospective View

5 The contribution of religions to the care of our common home

Conclusion and Prospects:
the significance of our common home in God’s plan


Preliminary note

 

The International Theological Commission is not merely a group of theologians who meet simply to draft a text, but a forum for free exchange and dialogue, enriched by the perspectives of a diverse range of people from different ecclesial and socio-cultural backgrounds.

During its tenth quinquennium, the Commission explored the theme of creation in the light of the revelation of the Triune God in Christ, with reference to the commitment to the care and safeguarding of our common home. The work was carried out by a special sub-commission, chaired by Prof. Alenka Arko and comprised of the following members: Fr Gabino Uríbarri Bilbao, S.J., Fr Peter Dubovský, S.J., Rev. Edouard Adé, Rev. John Junyang Park, Fr Thomas Kollamparampil, C.M.I., Rev. Nicholaus Segeja M’Hela, Rev. Yury Avvakumov, Fr Jorge J. Ferrer, S.J. († 2024), Rev. Marek Jagodzínski († 2025).

In-depth discussions on the topic took place both during the sub-commission’s meetings and during the Commission’s plenary sessions, held between 2022 and 2025, under the coordination of the Secretary-General, Monsignor Piero Coda. The resulting text, entitled Caring for our Common Home: A Responsible and Fraternal Response to the Triune God, was approved in its final form by a majority of the Commission’s members in a vote during the online meeting held on 23 July 2026. The document was subsequently submitted for approval to its President, His Eminence Cardinal Víctor Manuel Fernández, Prefect of the Dicastery for the Doctrine of the Faith, who brought it to the attention of Pope Leo XIV on 28 July 2026. The President authorised its publication on 21 August 2026.

Preface: A Threefold Transformation

‘With a thousand graces pouring forth
he hastened through these groves,
and, looking upon them,
by his mere presence
he left them clothed in beauty.’
[1]

1. [A primordial experience of faith]. Although the Christian perception of nature, based on faith, takes many forms, in this famous stanza from his Spiritual Canticle, the mystic and poet Saint John of the Cross, a Doctor of the Church, evokes a fundamental, primordial religious experience, one also shared by other great believers.[2] He depicts a way of looking at nature and relating to it that is an intrinsic dimension of the heritage of his Christian faith. He perceives nature as imbued with the presence of God, which overflows in it with ‘a thousand graces’.[3] He also captures its beauty, with which God has adorned his creation like a magnificent artist, who, without great effort, creates a work of supreme beauty, leaving upon it the imprint of his creative genius. It is a creative work which the mystic, in his explanatory commentary on the poem, associates with the Son.[4] The experience of faith, immortalised by poetic genius, conveys a marvellous sense of serenity, peace and harmony with nature, of which praise for the Creator and the perception of the Christological imprint on creation and its destiny to share in the glory of the Triune God are an intrinsic part.

2. [A threefold transformation within culture]. Since St John of the Cross set his experience of faith to verse in the sixteenth century, three major, though not simultaneous, cultural transformations have significantly altered our perception of nature and thus our relationship with it. First, the spontaneity with which nature was regarded as God’s creation has changed. Secondly, the conception of the human being’s place in the cosmos has changed through the assumption that human beings or their technological products occupy the central axis of the world, displacing both God and the cosmos from their rightful places. Thirdly, as the final manifestation of this ‘anthropocentric and predatory’ view of our relationship with nature, we have fallen into a global ecological and social crisis of unprecedented proportions, which Pope Francis, together with his predecessors[5] and other religious leaders, has strongly denounced for its short-sighted and self-destructive nature.[6] Alongside many advances that have significantly improved our living conditions, the qualitative leap in our relationship with the natural world brought about by modern technology has in fact been accompanied by a previously unknown global impact on the environment, which has been criticised in a pioneering way from within the scientific community itself.

3. [Interconnection]. From our conception of what the cosmos is and, within it, the natural world closest to us, our planet (cosmology), we can deduce the appropriate way to relate to it (ecology). And this entails an understanding of the human being’s place in the cosmos (anthropology). The observation that ‘daily existence is always cosmic’ (QA 41) does not apply solely to the Amazon. We human beings (anthropology) exist and shape our identity through our interaction with the environment in which we live (ecology), which is in turn determined by our conception of the value of the cosmos we inhabit (cosmology). Thus, when viewed clearly: ‘everything is connected’.[7]

4. [Key factor: the self-understanding of the human being]. If we ask ourselves what the key factor is within this network of connections, the root factor that has caused the eco-social crisis, we can easily conclude that it lies in our conception of the human being’s place in the cosmos. ‘There can be no ecology without an adequate anthropology.’ (LS 118) The way in which human beings understand themselves determines how they relate to others, to nature and to God. The fulcrum around which our discussion revolves is the close link between self-understanding and our relationships with others, with nature and with God. These are the essential relationships that constitute and define us (cf. MH 50, 73). This understanding precedes any explicit ethical or political decision, guiding our desire and the measure of its satisfaction.

5. [Approach]. Ecology is the result of how one resolves the equation of the interaction between cosmology and anthropology. Therefore, an ecological approach that seeks to get to the root of the issues cannot avoid addressing both these dimensions. In this document, we shall focus on a central, albeit partial, aspect of each of these areas.

In the first chapter, we focus, from a theological perspective, on a Trinitarian vision of the creation of the cosmos, highlighting the resulting Trinitarian imprint on creation and its implications.[8] This is the central element of the proposal we put forward, which aims to shed light on the meaning and value of creation and the human person within the framework of our common home, a gift of the Trinity to be safeguarded and perfected. Although the Church professes that all things, visible and invisible, were created by God, this document focuses on our common home, and in particular on our planet, as part of the physical universe. Taking the theological theme of creation as our starting point, we then engage in dialogue with certain scientific perspectives. In the second chapter, we consider the foundation and scope of the human being’s role in the common home (cf. LD 67). As well as presenting the Christian position, we are open to dialogue with ecological reports and with the positions of certain ecological philosophies. In the third chapter, we propose a series of guidelines and guiding principles for the care of our common home and for ecological conversion.[9] Since this is a task that concerns us all, we draw upon theological principles, ethical principles and the wisdom of the great religious traditions.

The perspective we offer does not venture into the realm of technical, complex and necessarily interdisciplinary solutions.[10] What we wish to set out, modestly but with conviction, is a vision that inspires culture and, above all, spirituality – recognised as an indispensable dimension for addressing the eco-social crisis we are experiencing on a global scale.[11] Although the Encyclical Laudato si' contains a wealth of theological and spiritual content, we wish to contribute to its reception by exploring in greater depth certain theological issues that are given less prominence in the Encyclical on account of the urgency of the ecological issue.

6. [Key emphases]. Our approach is also characterised by three key emphases. First, starting from the urgent need for radical change driven by a genuine ecological conversion,[12] in view of the serious deterioration of the environment which, in itself, sustains the lives of human beings and many other species on our planet and which is now bringing us dangerously close to a breaking point and a point of no return,[13] we are committed to setting out the theological foundation for the care of our common home beyond the extremely grave situation in which we find ourselves. The care and safeguarding of our common home are, in fact, inscribed in God’s plan for creation. Secondly, whilst recognising the ecological and social dimensions of the crisis facing humanity today, we emphasise its theological dimension. Thirdly, we conduct our reflection in dialogue with other perspectives,[14] following the direction set out by Pope Francis on this topic in the fifth chapter of Laudato si' (cf. LS 164–201). Beginning from the starting point of Western Latin theology and the contributions of the spirituality and theology of the Eastern Catholic Churches, we draw in particular on the theology of the Orthodox Churches, as well as on analyses stemming from various worldviews. In this way, we aim to contribute to the promotion of an integral ecology – as called for by Laudato si', particularly in Chapter IV, and by Magnifica humanitas [15] – and to ecological conversion.

Chapter I. Our Common Home: the Work of the Triune God

1 Creation: the work of the Triune God

7. [Introduction]. This is not the place to present a comprehensive and detailed account of the theology of creation. We take as our starting point those fundamental aspects which are proper to Catholic theology on this subject, drawing on Sacred Scripture and the Tradition of the Church. Our focus is on one point: the Trinitarian character of creation. From this, in fact, several significant and fruitful perspectives emerge: the task of caring for our common home comes to us from the God who is one and three; engaging in this task, neglecting it, or even disregarding it represents one of the defining dimensions of our relationship with God; the Trinitarian imprint on creation enables us to have a profound grasp, indeed, at its deepest root, of how everything is interconnected: a truth emphasised in Pope Francis’s ecological Encyclical (cf. LS 16, 91, 117, 138, 240; cf. QA 41–42). For his part, Pope Leo XIV emphasises that ‘creation bears the imprint of an original goodness that our human outlook must preserve, cultivate and bring to fulfilment.’[16]

8. [Creation: the work of the Triune God]. Since the divine economy of salvation is Trinitarian, it unfolds in a Trinitarian manner. God’s first act ad extra is Trinitarian: creation.[17] The work of creation is common and united among the whole Trinity: ‘The Father, the Son and the Holy Spirit are not three principles of creation but one principle.’[18] This does not prevent there being a differentiated action of the divine Persons within this single work: ‘the first Principle of beings is one, who creates through the Son and perfects in the Spirit’.[19] But the result of their action, the being, goodness and beauty of creatures, reflects the convergent and loving action of the one God.[20] From the very beginning, the Fathers of the Church have interpreted the plural form in Gen 1:26 – ‘Let us make human beings’ – as spoken by the Father to the Son[21] or to the Son and the Holy Spirit,[22] that is, as a decision made by the Three who are the one God.[23] The Second Council of Constantinople (553) brings together and summarises this doctrine, expanding on the perspective of 1 Corinthians 8:6: ‘For there is but one God, from (ek) whom all things are; one Lord Jesus Christ, through (día) whom all things are; and one Holy Spirit, in (en) whom all things are.’ (DH 421)

9. [The Father]. Although there are significant variations amongst the Church Fathers, one of the oldest metaphors is that of the two hands with which the Father brings about the creation of the world.[24] But there are other expressions too, such as that proposed by Saint Gregory of Nazianzus who, speaking of the Creator, writes: ‘His name is God, even though He consists of three Persons: one is the cause, another the maker, another the perfecter. I am referring to the Father, the Son and the Holy Spirit’.[25]

10. [The Son]. The Son, who is the Word of God, plays a decisive role in the work of creation.[26] The Church Fathers interpret the ‘beginning’ referred to in Gen 1:1 (ἐν ἀρχῇ) as the Logos of John 1:1 (ἐν ἀρχῇ ἦν ὁ λόγος).[27] Therefore, it is through the Word-Son that all things come into being.[28] Furthermore, if God creates through the word He speaks, as the Book of Genesis teaches - ‘God said’ (cf. Gen 1:3; cf. Ps 33:6) - the Fathers interpret this word as the Logos (cf. Jn 1:1–3), whom they identify with the creative Wisdom spoken of in the Old Testament (cf. Prov 8:22–31).[29] Since the Son is the Logos of God the Father – that is, intellect, wisdom and word – He knows the divine plan in its entirety and brings it to fulfilment in creation.[30] For this reason, the whole of creation bears within itself the imprints of the Logos, the lógoi, which imprint upon the very nature of creation a dynamism towards its fulfilment, which will be accomplished by grace.[31]

11. [Creation and Incarnation]. The Creator Word became flesh: σάρξ (cf. Jn 1:14; Rom 8:3): this is what faith in Christ Jesus attests. For a theology of creation, it is not insignificant that the New Testament chose neither the generic ‘ánthropos’ (human being; cf. Phil 2:7) nor the term ‘soma’ (body). Sárx, in fact, denotes the most material dimension of the human being, the one shared most with creation and the most vulnerable. In this way, the theology of the Incarnation establishes a profound connection with creation and expresses the constitutive link between creation, the Incarnation and salvation: for salvation can be understood – in the words of Saint Irenaeus of Lyons – as salus carnis, salvation of the flesh and through the flesh. Thus, Christian salvation, far removed from any form of Gnosticism, does not forget creation. The Incarnation takes on a cosmic dimension, for the Word, in his humanity, takes on creation and shares in it. From this it follows that the final recapitulation cannot take place in the absence of creation.

12. [Threefold creation through the Son in the divine economy]. In a re-reading of the divine plan from the perspective of creation, the Son is presented first of all as the creative Logos through whom all things were made in the beginning (creatio originalis). Given that creation is an ongoing act, the Son is not excluded from participation in this ongoing creation (creatio continua). The eschatological fulfilment, too, as the new creation (creatio nova; cf. 2 Cor 5:17; Gal 6:15; Rev 21:5), will bear his mark. He is at work in every phase of the divine economy. Throughout the entire history of salvation, God continues to act through the Word, before, during and after the Incarnation. He does this first of all by establishing the people of Israel and the Church; by illuminating history with his Resurrection in the fullness of time; and finally, at the end of time, in the fulfilment of God’s plan, when God will be all in all (cf. 1 Cor 15:28). He is, in fact, the fullness of the creation (cf. Col 1:15–20), which cannot be understood except in relation to the total mystery of Christ (cf. LS 99). Since all creatures were formed by the Word, it is fitting that re-creation should take place through the Incarnate Word, the one Mediator, Christ Jesus (cf. 1 Tim 2:5), and find its fulfilment in him.

13. [The filial imprint in creation]. The fact that everything was created in Christ, through him and for him, means that everything that exists bears, in a certain sense, a filial imprint. This explains why the human creature finds fullness and fulfilment only in gratuitous love, and the rest of creation does so through its connection with the children of God (cf. Rom 8:18–21). Saint Paul affirms that human perfection consists in attaining the ‘full maturity of Christ’ (Eph 4:13). We can say that, in Christ, the Trinitarian imprint in creation is revealed as a filial imprint: ‘In the Incarnation, through the only-begotten Son who was born of a Virgin by the power of the Holy Spirit, the Triune God establishes the possibility of an intimate personal communion with human beings’ [32] and with the whole of creation (cf. LS 89–92).

14. [Christ in the divine economy]. The divine economy of salvation is founded on creation and culminates in eschatology; Christ is ‘the Alpha and the Omega, the Beginning and the End’ (Rev 21:6). This does not take place automatically or in a linear fashion. The beginning is linked to the end, but passes through the dramatic economy of the Incarnation and the Cross, for the economy of salvation entails the overcoming of sin. Indeed, the whole of creation has been wounded by human sin (cf. Gen 3:17–19) and is subject to a bondage from which it also longs to be set free (Rom 8:20–21). For this reason, the entire Gospel of salvation, including for our common home, has its central point in the cross of the Incarnate Word, as the place and event at the centre of the cosmos and of history. Having taken on ‘the likeness of sinful flesh’ (Rom 8:3), at the moment of his passion and death, Jesus Christ took upon himself, in his flesh, all the unjust consequences of sin. Thus, in the humanity of the Son of God, the perfect mediation of salvation for the whole of creation was fulfilled, in view of his glorification (cf. Jn 17:5). If ‘Christ, raised from the dead, dies no more’ (Rom 6:9), then the cross planted on Golgotha is the new ‘tree of life’, which is planted not in the Garden of Eden, but in the heavenly Jerusalem: ‘Down the middle street of the city, on either side of the river, stands a tree of life bearing twelve kinds of fruit, yielding its fruit every month. And the leaves of this tree are for the healing of the nations’ (Rev 22:2). With the Incarnation of the Son of God, this future will not be confined to the eschatological citizenship of human beings, but will have a cosmic dimension and scope.

15. [The Holy Spirit]. Love is the proper name of the Holy Spirit,[33] just as ‘Word’ is that of the Son. The Spirit is not only love within the life of the Triune God ad intra, but also love in God’s action ad extra. The work of the Spirit in creation has been interpreted with a great variety of emphases by the Fathers of the Church.[34] Some attribute to the Spirit an active role in creation from the very beginning – beginning with the mention of the Spirit ‘hovering over the waters’ in Gen 1:2[35] – as the one who transforms the initial chaos into an ordered cosmos. Others regard him – by way of a simple appropriation[36] – as the goodness through which God takes pleasure in the perfections of the creatures he loves.[37] Others see him as the one who perfects[38] and beautifies[39] the joint work of creation, guiding the created world – together with humankind – towards eschatological fulfilment.[40] The liturgy captures this sentiment: ‘by the power and working of the Holy Spirit, you give life to all things and make them holy’.[41] In particular, for the Church Fathers, the Spirit intervenes in the transformation of human beings, created in the image of God, so that they may attain likeness to him.[42] For this reason, the Spirit is rightly recognised as the divine person most intimate to human beings (cf. Rom 5:5). The Spirit also perfects creation at every moment in history, making it like to Christ (cf. 2 Cor 3:18) through a progressive growth, mediated by human action in Christ; in this way creation moves towards its eschatological fulfilment. The Nicene-Constantinopolitan Creed summarises these various aspects of the Holy Spirit’s creative and salvific action in the designation it attributes to him: ‘giver of life’ (DH 150; cf. Rom 8:2). The liturgical hymn Veni, creator Spiritus [43] beautifully expresses this consciousness of faith, which has matured within the Tradition of the Church.

2 The Trinitarian imprint in creation

16. Since God acts in a Trinitarian manner, it is not only licit but also consistent and rich in insight to maintain that throughout all creation there is an imprint that is not only divine but also Trinitarian. Let us explore this interpretative framework of Trinitarian ontology through four fundamental features which, throughout the development of theological tradition, have been the subject of explicit examination, albeit with varying degrees of continuity and emphasis.

2.1 The possibility of perceiving the imprint of the Trinity in creation

17. [The question]. In Laudato si', Pope Francis emphasised that St Bonaventure ‘teaches us that each creature bears in itself a specifically Trinitarian structure’[44] (LS 239). For him, in fact, not only human beings but the whole of creation constitutes a book in which a Trinitarian structure ‘could be readily contemplated if only the human gaze were not so partial, dark, and fragile’.[45] Human beings neither invent nor imagine the Trinitarian imprint on creatures. This reflection of the Trinity is truly present in them, regardless of whether we are able to recognise it. This goes beyond the classical procedure of appropriation. To explore this assertion further, we shall focus in particular on four leading figures of the Western theological and mystical tradition, four Doctors of the Church,[46] who develop this vision with their own distinctive perspectives and emphases. It would be equally appropriate to offer a similar overview, to complement and enrich the one merely sketched out here, if one were to draw instead on authors of equal stature from the theological and mystical tradition of the Christian East.

2.1.1 The teaching of some Doctors of the Church

18. [St Augustine of Hippo]. St Augustine was undoubtedly one of the authors who explored in depth the theme of the Trinitarian traces (vestigia Trinitatis) imprinted on creation, exerting a great influence on the subsequent Western spiritual and theological tradition.[47] He writes: ‘It is therefore necessary that, by knowing the Creator through his works [cf. Rom 1:20], we should be led to the Trinity, of which creation, in a certain and fitting proportion, bears the trace’.[48] All creatures do indeed bear the divine imprint within themselves, but only of human beings can it be said that they were created in the image of God. Whilst Saint Irenaeus of Lyons[49] and Tertullian,[50] for example, had also included the flesh in their understanding of the human being as the image of God, for Augustine, although the human being is composed of a material body and a rational soul,[51] the divine image is properly found in the soul or, rather, in its highest part: the mens.[52] The mind is what makes human beings superior to non-rational living beings[53] and enables them to know God.[54] Augustine describes the acts of the soul in two ways: as memoria, intelligentia, voluntas[55] (remembering, understanding, willing) and in terms of mens, notitia, amor[56] (mind, knowledge, love). Remembering, understanding and willing are three activities of the soul in which, through a bold analogy, one can discern an image both of the unity of the divine substance and of the distinction between the three Persons in God. Augustine emphasises that there is a close interrelation between mind, knowledge and love, for the mind, in fact, loves what it knows. This enables him, on the one hand, to express the distinction between each of the activities of the soul, for neither the mind nor knowledge nor love intermingle or become confused with one another. On the other hand, however, he can recognise their mutual immanence, since in each one the same soul is present and active.[57] Within this framework, Augustine finds traces of the human soul’s likeness to the Triune God, in the interweaving of unity, distinction and mutual interpenetration.

19. [Saint Hildegard of Bingen]. In the work of Saint Hildegard of Bingen, we admire a creative and original interpretation of Augustinian thought, expressed in prophetic and visionary language that reflects her profound mystical experience. For Hildegard, God reveals himself through the cosmos and the human being, two extremely complex realities connected as macrocosm and microcosm. Creation presents itself as a ‘second Scripture’: it is a place where the divine is made manifest and where we share in its mystery.[58] For this reason, creation is imbued with a sacramental and symbolic value that is a manifestation of divine vitality itself. Hildegard also contemplates a marked continuity between creation and salvation, both divine works that manifest the action of the Triune God. In this sense, she speaks of viriditas (literally ‘greenness’) as the vital energy that comes from the Triune God and permeates all creation, manifesting itself as vigour, vitality, freshness and the capacity for growth and healing. It is the expression of God’s creative power in nature, in the body and in the soul, which must be nurtured for spiritual and physical health. In some texts, she refers, practically in the same sense, to a dynamic vestigium, which is perceived in the fruitfulness of nature, in human health and in the history of salvation.[59]

20. The human being, as summa creaturarum (the sum of creatures)[60], represents for Hildegard the hermeneutical key to creation: by participating in the symbolic structure of nature and possessing the capacity to interpret and prolong divine action, the human being makes the sacramentality of the cosmos intelligible. For this reason, as well as being an opus Dei (work of God) alongside all creatures, the human being is also called an operarius divinitatis (worker of divinity), called to ‘reveal the Most Holy Trinity in all things’.[61] This is possible because human beings are created in the image of the Triune God. This image is imprinted not only on the soul, but on the whole of the human being: the body, the soul and the rational mind. These three realities are deeply connected, just as the Persons of the Trinity, whilst distinct, are mysteriously the one God. Hildegard recognises the image of God in a particular way in the five senses, thanks to which the human being becomes sapiens, sciens, intelligens (wise, knowledgeable, understanding), capable of knowing creation and, through creation, God by means of faith. Wisdom, knowledge and understanding are not isolated faculties, but are mutually interrelated, and here a Trinitarian analogy can be recognised.[62] Human beings, created in the image of God, can discover a certain ‘sacramentality’ in the cosmos, whilst creation provides human beings with a language through which to interpret and manifest the divine life.[63]

21. [St Bonaventure of Bagnoregio]. St Bonaventure, as already noted, offers a particularly significant conception of the Trinitarian imprint in creation. He draws inspiration, on the one hand, from Augustine and, on the other, from the spirituality of St Francis of Assisi, which is radically Christ-centred and which, precisely for this reason, opens itself up in Christ to embrace all creatures as brothers and sisters, as attested by the Canticle of Brother Sun. For Bonaventure, the whole of created reality bears the imprint of the Trinity, for the ‘joy of communion’ (communicabilitas), which lies at the heart of the Life of the Triune God, is the free and gratuitous source of all that exists and of every grace.[64]

22. The whole of creation is like a ‘book’ (liber creaturae) in which one can read the attributes of the Creator, the one and triune God. Bonaventure clearly distinguishes between two levels: all creatures reflect the Creator as ‘shadows’ (umbra) or ‘traces’ (vestigia);[65] but the spiritual and personal creature – which is not only bound to God by its very existence, but is called to recognise and love him – is the image of God (imago).

23. Creatures are called ‘shadows’ in respect of those properties which, in some way, point to God from the perspective of the causality that He exercises in general over them, without this yet precisely determining their own nature. They are called ‘imprints’ in reference to the properties that point to God specifically as their efficient, exemplary and final cause,[66] so that every creature is ‘one’, ‘true’ and ‘good’. Human creatures are properly called ‘image’ in respect of their properties which refer to God not only from the perspective of causality, in which they coincide with the rest of creation, but by virtue of which God can become the conscious object of a lived relationship with them. This is due to consciousness, knowledge and will, in which the Trinity, in some way – as taught by Saint Augustine – reflects its image in the rational creature.

24. From this point onwards, we can explore in greater depth the meaning and scope of the distinction between human beings and all other creatures with regard to the knowledge of God.[67] As a ‘shadow’, creation leads to the knowledge of God’s common properties as such (communia ut communia), that is, as properties proper to the essence of God. The ‘imprint’, on the other hand, leads to the common attributes insofar as they are attributed to the divine Persons (communia ut appropriata), attributes which are associated in a particular way with one of the divine Persons, although these attributes are nonetheless, by their very nature, proper to all three Persons: power, wisdom and goodness.[68] Finally, the ‘image’ leads to the recognition of the qualities that are proper (propria) to each Person: fatherhood, sonship, and being spirated.[69] The relationships between the divine Persons are reflected, in the human creature, in the relationship between memory, intellect and will.[70] In this context, the particular characterisation of the Son should be noted. As the Word, He is the exemplary cause of the world, inasmuch as ‘this archetypal idea or conception of the world is not only appropriated to the Son, but is also proper (proprium) to Him’.[71]

25. Being the ‘image’ of God does not mean displaying a static likeness, but response to a calling: to enter into a personal relationship with the Triune God (in this sense, the human creature is capax Dei). The three activities of the soul highlighted by Saint Augustine – memory (self-awareness), intellect and will – attain their perfection when their object is God (summum verum and summum bonum) and all creatures and all human persons, including oneself, are seen in the light of God.

26. Continuing his reflection, Bonaventure observes, from the perspective of salvation history, that human beings could have perceived an even clearer reflection of the Trinity in creatures, had they not sinned. Indeed, original sin introduced a profound disorder: by this turning away from the Creator out of unfounded mistrust, ‘the ladder (scala) that was to lead creatures to the knowledge of the Creator was broken’. In this new situation, creatures no longer ‘speak’ to human beings; they are no longer clear ‘signs’ (signa), but have become enigmatic, because human beings have become ‘deaf’ to their message.[72] Even self-knowledge has become alien to human beings.[73] Whilst, on the one hand, it is evident that the signa are no longer a ‘clear mirror’ as they were in the beginning, in the Garden of Eden, on the other hand, it must be recognised that human beings’ ‘blindness’ does not stem simply from an inability, but is also linked to a deliberate resistance.[74]

27. The Doctor of the Church describes the consequences of this situation in no uncertain terms: ignorance of what is existentially most important, a resulting inner restlessness, the oscillation between boundless self-confidence and despair, the elevation of finite goods to absolute status, with the prevalence of envy and the desire to eliminate rivals. In a word: a vicious circle of desire and frustration. But the ‘book of creation’ becomes comprehensible once more through the ‘book of Sacred Scripture’[75] and the ‘broken ladder’ is restored by Jesus Christ. God’s revelation in history, which culminates precisely in Christ – incarnate, crucified and risen – opens our eyes to the profound dimension of creation and its purpose: God has planned even greater blessings for the human person.

28. Certainly, the testimony of Scripture does not in itself produce faith; rather, the inner light of grace (lumen supernaturale) is necessary to assist the natural capacity for knowledge proper to the human being (lumen naturale) in recognising, in the revelation in Christ of the one and triune God who is love, the One whom natural knowledge (notitia innata, confusa) has intuited as the Holy, the Sublime and the Good.[76] Bonaventure calls this conjunction of natural knowledge and the light of grace the ‘book of life’ (liber vitae). When the believer once again recognises creatures as signs and gifts, as intelligible and good, then ‘knowledge of creatures leads to knowledge of the Creator’, accompanied by wonder, gratitude and joy:[77]

‘‘God created everything for his own sake’ (Prov 16:4). As the supreme majesty, he created everything that it might proclaim his praise. As the supreme light, he created everything that it might reveal him; as the supreme goodness, he created everything in order to communicate it. The praise of creatures would not be perfect if there were no one to honour it; revelation would not be complete if there were no one to understand it; and the communication of goods would not be complete if there were no one capable of appreciating them. […] Only the rational creature can give honour, know the truth, and acquire goods for its own use.’[78]

Restored by supernatural light – by Revelation and by grace – the human mind can regain the lost capacity to recognise the Trinity in creatures.

29. [St Thomas Aquinas]. The Angelic Doctor situates his discussion of creation within the framework of Trinitarian theology.[79] First, he states that everything that is not God, insofar as it is not His being,[80] ‘participates in the divine being, which is its cause’.[81] Secondly, he emphasises that ‘creation befits God according to his being, and this is his essence, which is common to the three Persons’[82] and that, therefore, the creative act is common to the three divine Persons. Thirdly, however, he specifies that ‘the divine Persons, as regards the creation of things, have a causality according to the manner of their procession’.[83] More specifically, ‘God the Father brought creatures into being through his Word, who is the Son, and through his Love, who is the Holy Spirit. In this way, the processions of the Persons are the type of the creation of creatures, inasmuch as they include the essential attributes of knowledge and will’.[84] So much so that the generation of the Son and the procession of the Spirit are the ratio and cause of creation.[85] In the creative action of the Triune God, there is thus a free and gratuitous extension ad extra of the intra-Trinitarian life ad intra. For this reason, Thomas can affirm that ‘knowledge of the divine Persons was necessary for us for two reasons: first, to understand creation correctly […] and secondly and chiefly, to understand the salvation of the human race correctly’.[86]

30. On this solid foundation, Aquinas establishes a skilfully articulated interweaving among the attributes traditionally ascribed to the divine Persons – power to the Father, wisdom to the Son, goodness to the Holy Spirit – and the relationships proper to each Person with creation. According to Thomas, the mode of acting depends on the mode of being of each of the divine Persons.[87] There is a point at which St Thomas goes beyond the mere procedure of appropriations: when he refers to the ‘through him’ applied to the Son. Since the Son is the Word through whom the Father acts, it falls to the Son to be the mediate cause of the creatures that were created through Him: ‘This “through Him” is not always just appropriated, but is instead proper to the Son (proprium Filii), as is found stated in John 1:3: “All things were made through Him”, not as an instrument, but because He Himself is the principle from a principle.’[88] It is, in fact, proper to the Son to be the ‘begotten Creator’.[89] Similarly, the Holy Spirit is Love[90] and the Gift[91] through which the Father and the Son love creatures. Creation is placed, freely and gratuitously, at the heart of the intimate fabric of the loving relationships between the three divine Persons, in which it is called, in its own way, to participate.[92] The internalisation of the life of the Triune God within creatures culminates in the divine economy through the mystery of the Incarnation of the Word and the gift of the Holy Spirit. The Trinitarian exitus is fulfilled in the reditus, which is also Trinitarian, in which creation is called to participate.

31. [Summary]. The four Doctors of the Church whose teachings we have cited do not intend to offer a scientific description of the cosmos. They view it from the perspective of faith, certain that, if the Creator is one and triune, creation in some way manifests this origin and goal. Augustine focuses his attention on the human person, seeking in it the reflection of the Trinity. Hildegard and Bonaventure operate within a framework that we would today describe as symbolic, and they propose an understanding of it in sacramental terms (cf. below, nos. 34–35). Thomas, adopting a more unadorned and disciplined tone in the Summa Theologiae, firmly grounds the Trinitarian imprint present in creation in the intra-divine processions, attributing a fundamental place to the procession of the Word: hence the filial imprint of which we have spoken (cf. no. 13). All four distinguish between creatures in general, in which they find ‘shadows’ and ‘traces’ of the Trinity, and the human person, who is, in the proper sense, created in the image of God in Christ and in whom the Trinitarian likeness is manifested and displayed in a specific and explicit way. Despite sin, this gaze of faith, which heals and strengthens the light of reason, is capable of discerning and seeking out the presence and meaning of the Trinitarian imprint in creation, especially in the rational creature.

2.1.2 Implications from a relational perspective

32. We bring all these elements together, bearing in mind the discretion that is necessary in regard to analogy,[93] but recognising, in particular, a rich Trinitarian symbolism in the complex web of relationships that exists throughout creation, and which culminates specifically in us, creatures capable of love. The Lord Jesus, ‘when he prayed to the Father that all may be one, just as we are one (Jn 17:21–22), opened up vistas closed to human reason, for He implied a certain likeness between the union of the divine Persons, and the unity of God’s children in truth and charity’ (GS 24). Moreover, Thomas himself, commenting on this prayer of Jesus, emphasises: ‘our unity (as human beings) is perfect only insofar as it shares in the divine unity. Now, in God there is a twofold unity: namely, that of nature, as stated in John 10:30: ‘I and the Father are one’; and the unity of love in the Father and the Son, which is a unity of the Spirit. And both are present in us, certainly not by way of equivalence, but by a certain likeness’.[94] Following, therefore, the line of thought outlined by these authoritative witnesses of the theological tradition, and taking into account the insights theology has developed over the subsequent centuries, we can justifiably speak not only of the relationship between all creation and every single creature with the Triune Creator, but also of an interrelatedness that is imprinted amongst creatures and gives dynamism to their existence: this too characterises the symphony of creation arranged by the one and triune God, within whose bosom this interrelatedness lives in the love of the divine Persons, from whom the life of creation originates and to whom it is destined by grace.

33. Contemplating the traces of God in creation reveals that the world is a web of relationships, as Pope Francis emphasised:

‘From this comes the particular feature, in the formation of a Christian culture, of discovering in the whole of creation the Trinitarian imprint that makes the cosmos in which we live a “network of relations” in which “it is proper to every living being to tend towards other things”. This in turn fosters “a spirituality of that global solidarity which flows from the mystery of the Trinity”.’[95]

Pope Francis regards the relational character of creation as a fundamental guiding principle of integral ecology (cf. LS 16, 70; LD 19). This statement draws on the fruits of the renewal of Trinitarian theology, which has explored with thoroughness the relational paradigm present in the great witnesses of the Tradition.

2.2 Sacramentality

34. [Sacramentality and the action of Christ]. Christian Tradition has interpreted Christ’s action at the beginning of creation by the fact that God creates through his Word: ‘God said’ (cf. Gen 1:3, 6, 9, 11, 14, 20, 24, 26; Jn 1:1, 10). The lógoi present in creation point to the creative Logos and reflect him (cf. no. 10). The universe is therefore a cosmos ordered by the Logos who ‘became flesh’ (Jn 1:14), that is, who became a creature without ceasing to be the Creator.[96] Consequently, material reality, the lives of animals and human beings, history and relationships, all things that exist, are not only interconnected but ordered in such a way as to find their full meaning in the mystery of the Incarnate Word. The Incarnation of Christ reveals and brings to fulfilment the sacramental character of all creation, directing it towards its definitive fulfilment. The Trinitarian imprint, present throughout creation, has its full potential realized when its reflection of the Trinity is revealed, culminating in the glorification of God, stirred up and animated by the sanctifying Spirit, becoming part of the dynamism that Christ’s humanity has impressed upon the universe. The crucified Lord not only draws all humanity to himself from on high (cf. Jn 12:32), but he has risen and ascended to the right hand of the Father. From his heavenly throne, he also draws all creation towards its fulfilment (cf. Eph 1:10): the new heavens and the new earth (cf. Rev 21:1 ff.).

35. [Sacramentality and ecology]. With sacramentality, we highlight the fact that the whole of creation, by its very reality and subsistence, points to the Triune Creator, from whom it originates and towards whom it is directed. We take the term ‘sacrament’ in its broadest sense, as a sign of a sacred and hidden reality (the corresponding Greek term is mystērion). By using the term analogically, as did, for example, Augustine, amongst others, and as the Magisterium also does when speaking of the sacraments of the Old Law,[97] we can say that the world is a vast sacramental system (cf. LS 235). In this way, when viewed in its truth, the whole of creation possesses a symbolic power that points to a meaning engraved in the very depths of its being: its Creator.[98] Indeed: ‘God, who through the Word creates all things and keeps them in existence, gives humanity an enduring witness to Himself in created realities.’ (DV 3). This dimension unfolds with particular intensity in the Church’s sacraments. They bear witness that creation is not merely a sign of God’s presence in a general way, but a sign of salvation in Christ. This is a most sublime exaltation of the creature: whilst remaining a creature, it becomes an effective sign of God’s love. This enables us to understand ‘creation as Eucharist’,[99] because: ‘it is in the Eucharist that all that has been created finds its greatest exaltation.’ (LS 236). In the Eucharistic liturgy, by bringing the whole cosmos to express God’s glory, creation fulfils its true purpose in a prophetic way.[100] Eucharistic Prayer III expresses this by saying that ‘all creation rightly gives you praise’.[101] It is an invitation to relate to creation as the sacrament of the Creator’s goodness, which speaks to us of God and reflects his glory (cf. Wis 13:1–5; Rom 1:19– 20). Thus we pray with Psalm 18:2: ‘The heavens proclaim the glory of God, the firmament shows forth the work of his hands’.

2.3 Eschatological purpose

36. [Christ’s action and eschatological purpose]. It is important to keep united the three aspects of Christ’s creative action: original, ongoing and new (cf. no. 12). As we have already said, this action is not a linear process (cf. no. 14). Our understanding is that, through Christ, the whole of creation has been destined from the very beginning for a specific goal: eschatological fulfilment. God the Father created everything in Christ in order to bring about eschatological fulfilment in him and through him. Consequently, the destiny of creation is fulfilment in God and a recapitulating final perfection, through the power of the Spirit, in Christ who died and rose again. This positive vision of both the origin and the end of creation stands in stark contrast to any form of Gnosticism.[102] Indeed, this final perfection encompasses not only the glorious humanity of the Lord, who revealed the marks of his passion by appearing to Thomas (cf. Jn 20:27), but also the created cosmos, ‘a new heaven and a new earth’ (cf. Rev 21, referring to Gen 1:1). This signifies the participation of all creation in the life of the Trinity. As regards human beings, it reveals the ultimate end of their being made sons and daughters in the Son, and of their being welcomed into the bosom of the Father, guaranteed by the resurrection of Christ Jesus, by his ascension into Heaven, and by the gift ‘without measure’ (cf. Jn 3:34) of his life-giving Spirit (cf. Rom 8:11).

2.4 Trinitarian ontology and interrelational communion

37. [Trinitarian ontology is relational.] Having been created in the image and likeness of Christ to share in the life of the Trinity, our fulfilment lies in being conformed to Christ through the Holy Spirit within the heart of the Trinity. Following the analogy drawn with the Trinitarian relationships, the way in which we are to live out the three essential relationships that constitute us as human beings is revealed to us and shared with us in Christ through the Holy Spirit; it is in living out these relationships that we can understand ourselves and be fulfilled. In the Trinity, everything is governed by gift and love. The Father begets the Son, bestowing upon him his divine essence. The Spirit proceeds from the Father and the Son, receiving from both the same divine essence. This relational ontology – the Persons are relations inasmuch as they subsist[103] – is, in truth, an ontology of mutual gift.

38. [An agapic relational ontology]. This dynamism of mutual self-giving among the divine Persons, which the theological tradition has expressed through the concept of perichoresis, is reflected in the dynamism of self-giving that governs the economy of creation and salvation in the spirit of agape. God’s love for creation is expressed in the self-giving of each divine Person with a view to its fulfilment and, in the Son made human, reaches its ultimate expression on the cross. For this reason, the Trinitarian relational ontology is an ontology of love poured out to the very end, as manifested on the cross and made present in the memorial of the Eucharist. Consequently, the Trinitarian ontology that characterises the life of God and which is freely shared with creation is a relational ontology insofar as it is agapic and Eucharistic, since it is realised in the gift of self.

39. [Living the three relationships in self-giving]. This relational dynamic, as a specific quality of creation, shines forth with the greatest clarity in human beings, for they are, properly speaking, in an analogical sense, the image of the Trinity (imago Trinitatis; cf. no. 64 below). If the human person is the image of the Triune God, whose being is ontologically expressed in the agapic and communal interrelatedness of the divine Persons, there follows agapic and communal interrelatedness as the vocation inscribed in the human being as one created by God and as redeemed and made a participant in the ‘divine nature’ (cf. 2 Pet 1:4) in Christ through the gift of the Holy Spirit. Nothing, therefore, could be further removed from solipsistic, individualistic and autarchic isolation as a model for the fulfilment of the human being. On the contrary, it is only by unfolding the agapic and communal relationality that constitutes them and to which they are called that human beings can attain their happiness and their true good, together with the whole of creation of which they are a part and in which they live as the image of God. Human beings respond to their vocation and fulfil it through the proper unfolding of the relationships that constitute them: with God, with other human beings, and with all other creatures. Only in this way do we truly understand ourselves. Consequently, overcoming the threefold crisis afflicting our time – ecological (relationship with creation), social (relationship with others) and religious (relationship with God) – requires the fostering of relationships governed by the dynamics of love, gift and gratuitousness in the three fundamental spheres of our existence (cf. Laudato si' 10): filial gratitude towards God and the personal offering of one’s life in Christ for his glory (cf. Rom 12:1); solidarity and mercy towards one’s neighbour (cf. Lk 10:25–37; Mt 25:31–46); care for the garden, our common home, in which God has placed humanity (cf. Gen 2:15).

40. [Relationality in God and in creation]. In the Triune God, there is found, in a mysterious and infinite way, a rich and harmonious dynamic between the distinction of each divine Person and their being in relationship with the other divine Persons, thus manifesting the mutual and perichoretic interdependence among the divine Persons, in the sense that none is an isolated monad, either in being or in acting, each of them being the one God in relation with the others. In their mutual relations, the Persons of the Trinity are fully ‘open’ to one another, without breaking the unity of the common divine nature which subsists in each of them personally. Similarly, there is no alteration of the divine nature when God opens himself to the world in his creative act, endowing his creatures with their own ontological subsistence and, in the case of human beings, with freedom. At the same time, the very way in which God, one and triune, creates indelibly marks the identity of his creatures: they are created ‘for Someone’[104] and attain their fullness to the extent that they enter into relationship with the One who created them and, in and through Him, with other created beings.

41. [Interrelatedness, interdependence and ecology]. From this fundamental truth, which is revealed to us through Revelation, we can conclude that all creation is interconnected. On our planet, everything forms a sort of ‘community’: the air, water, plants, animals and human beings, all enveloped and connected by the climate. The life of the planet, of which human life is a part, is sustained only in a ‘communal’ way, owing to the balance of a wide range of interdependent and interwoven relationships. Nothing and no one is an absolute monad. Everything is interrelated. We all depend on one another and on the whole. The term ‘ecosystem’ expresses, on a phenomenological level, the fact that we form this single community of life. The Anthropocene crisis we are witnessing today stems from the deterioration of the ecosystem in which we live, which alters the relational balance of the single community that sustains life on planet Earth.[105]

2.5 Ecological implications of the Trinitarian imprint on creation

42. To summarise: the world in which we human beings live, our planet, our common home, speaks to us as Christians of the Creator who is one and three, when we regard it properly in the light of faith. Throughout all creation there is an imprint of the Trinity, through which God makes himself present in his work. For this reason, our relationship with creation always implies a relationship with the Creator. Every action taken in relation to creation inherently possesses a religious dimension, even if this is often not explicit. We do not relate to the one and triune God solely in the liturgy, in prayer or in our relationship with our neighbour. We also do so when we breathe, eat or sow seeds; or when we cut down forests, extract minerals or dump toxic waste. For this reason, it is inconsistent with the logic of faith to downplay or exclude ecological concerns, dismissing them as something alien to the Christian faith itself. On the contrary: if creation is God’s work and bears his mark, then by treating creation in one way or another, we are acting with regard to what is an inherent aspect of our faith. Discovering the Trinitarian and sacramental imprint in all of creation leads us to understand that the proper way to live in this world is to perceive, safeguard and promote the interrelatedness of all things in our common home, destined for divine glory and the fulfilment of every person.

43. Creation, our common home, does not come from God’s hands in such a way that its sole purpose is to provide the necessary support for human beings to realise their full potential in governing and utilising the resources of creation without any limits. In other words, the ultimate purpose of creation is not limited to the utility it may have for human beings and the development of their lives. Throughout creation there is an orientation towards fulfilment in God through Christ (cf. 1 Cor 15:24–28) and in the Holy Spirit, when, at last, the full and glorious manifestation of the one and triune Creator will be revealed. For this reason, human beings cannot claim the right to subjugate creation indiscriminately to their own ends, reducing its meaning and value to the mere instrumental utility it can provide them: this is the temptation of absolute anthropocentrism (which we shall discuss further on, cf. nos. 99–102). On the contrary, human beings are called to fulfil the specific role entrusted to them by the Creator by focusing their gaze on the doxological purpose of creation. As we pray in the liturgy: ‘You formed man in your own image and set humanity over the whole world in all its wonder, to rule in your name over all you have made and for ever praise you in your mighty works, through Christ our Lord.’[106]

3 In dialogue with certain scientific and philosophical views of the cosmos

3.1 The scientific view of the cosmos

44. The understanding of creation proposed by theology in the light of faith is, in itself, open to dialogue with the various fields of knowledge, especially when they address the same themes, even though each does so on the basis of its own specific epistemology. This is the case with the human and natural sciences in their study and research into human life and the world in which we live, as is the case, for example, in physics, biology and the social sciences. On the other hand, the vision we hold of the cosmos of which we form part influences the ecological approach we adopt, since it determines the meaning and scope we attribute to human responsibility.

3.1.1 A brief overview

45. [The macroscopic universe]. With the advent of the space age, astronomers have been able to extend their observations of the cosmos from visible light alone, accessible to terrestrial telescopes, to the entire electromagnetic spectrum. The information thus obtained, interpreted within the framework of the Theory of General Relativity, has revealed the universe’s principal characteristic, its holistic evolution. This new cosmology, known as the theory of the Big Bang, reconstructs the history of the cosmos starting from around 13.8 billion years ago and demonstrates, on the basis of increasingly detailed and well-established data, that it has passed through vastly different phases, all connected and each responsible for the emergence of entities of increasing complexity. From an initial state that was extremely dense and hot, populated by free elementary particles, the cosmic expansion and the force of gravity led to the formation of the first stars, composed of hydrogen and helium. The most massive stars, evolving rapidly, produced within themselves all the atoms found in the periodic table of elements. In the interstellar medium, the chemical elements thus produced combined to form increasingly complex molecules. Less massive stars, such as our Sun, evolve very slowly and, over billions of years, provide a constant flow of energy to the planets surrounding them: a period long enough to allow, where conditions permit, biological evolution.

Although there are various hypotheses regarding the initial stages of cosmic evolution, which are still debated by scientists whilst they await a theory that unifies quantum physics with general relativity, two characteristics of cosmic reality are indisputable: its holistic evolution, open to the future, and the fact that space and time are an integral part of nature, on a par with matter and energy, and that, together with these, they share in the evolutionary history of the cosmos. On this basis, a suitable model for an essentially evolutionary reality is that of a relational ontology, which presents an interesting analogy with the Trinitarian imprint of creation.[107] Philosophers and theologians are called upon to take these fundamental characteristics of cosmic reality into account and to draw the possible consequences from them within their respective fields of expertise. This is a perspective that deserves further exploration by philosophers and theologians.

46. [The microscopic universe]. Another area of scientific research has focused its attention on the universe’s microscopic level. In 1913, Niels Bohr proposed a model of the atom consisting of a solid, homogeneous nucleus around which electrons orbit. This model was reinterpreted by quantum mechanics, which attributes wave-like properties to electrons. In 1932, J. Chadwick discovered that the nucleus of the atom cannot be regarded as a simple solid body, but is composed of protons and neutrons. Subsequent research has revealed the existence of further particles, such as neutrinos, alpha and beta particles, quarks, hadrons and dark matter. These discoveries gave rise to quantum field theory and a new classification of the particles that make up the universe. Based on data from CERN’s Large Hadron Collider (LHC), scientists hypothesised the existence of the Higgs boson, an elementary particle that forms the basis of the Standard Model. New colliders can provide data that reveal new aspects of the microscopic universe. The analysis of this data has led to the development of various theories, such as the supersymmetry model. These discoveries have radically redefined our understanding of matter, energy, particles and antimatter. They question many of the assumptions on which both religious and materialist understandings of the universe have been based.

47. [The organic universe of our planet]. Planet Earth was formed around 4.5 billion years ago. The first organisms probably appeared in its waters around 3.8 billion years ago. Life then evolved into more complex forms. The double-helix structure of DNA bears witness to a formidable accumulation of information, which explains the vast array of behaviours geared towards the preservation of life, from the most basic cells with a nucleus right up to human beings. In the context of evolution, around 2.5 million years ago there was a significant increase in cranial capacity and a series of cognitive transformations over the course of evolution, which gave rise to the cerebral capacities characteristic of the genus Homo. This brain, capable of storing, acquiring and generating new information, evolved into the brain of modern Homo sapiens between 300,000 and 200,000 years ago. The human brain can be considered the most complex living organ and structure known to us. At each stage of this ongoing evolution, new levels of organisation emerge, which can be interpreted as ‘qualitative leaps’ enabling the attainment of a higher level of complexity. The evolutionary line begins with inorganic molecules and extends to highly complex organic structures. Continuity and discontinuity constitute the evolutionary stages that challenge us to explore in greater depth traditional concepts of life, living organisms, human beings and their reciprocal relationships.

3.1.2 An open dialogue with science

48. [Radical questions]. The enormous progress in scientific knowledge, owing to the current theoretical framework and collection of data to which we have only briefly alluded, undoubtedly means that today we can answer with greater precision questions concerning, for example, the nature of the universe at the physical level or the development of life on planet Earth and its ‘beginning’ at the biological level. However, this data does not answer the fundamental questions about its ‘origin’, nor the ultimate questions of why the world exists, its meaning and its destiny, and the uniqueness and specific role of human beings within it. These are questions that science cannot answer, but which philosophy and theology seek to address, each according to its own epistemological status and method.

49. [Avoiding a twofold risk]. The relationship that must exist, in an epistemologically relevant manner, between the natural sciences and their findings, on the one hand, and philosophy and theology, on the other, must avoid the twofold risk of exclusivism and concordism. In the first case, one falls into the error of considering as valid only the epistemology of one type of knowledge (scientific knowledge, or philosophical and theological knowledge, as the case may be), whilst disregarding the value of other forms of knowledge. Thus, by elevating scientific knowledge to an absolute, one may end up positing a form of scientific materialism which, by promoting various forms of reductionism, denies the existence of God and his creative action; whereas, by elevating the perspective of faith to an absolute, one may fall into fundamentalism, which claims to be based on a literal interpretation of the Bible, without taking into account the various literary genres and scientific criticism[108] (cf. DV 12). Concordism, on the other hand, by failing to take account of the epistemological diversity of different fields of knowledge, ends up simplistically and inappropriately transposing the results obtained from one field of knowledge into the proper domain of another.

50. [Dialogue in respect for different epistemologies]. Science, philosophy and theology are not, in principle, destined to be in conflict with one another, provided that each respects its own epistemological status, its own methods and the limits of its own assertions, whilst each makes use of its own ‘language’. From this follows, first and foremost, the respect and attention with which each discipline is called upon to regard the research carried out by other disciplines and to take account of their findings. Furthermore, the Christian faith maintains that there is no opposition between faith and reason[109] and regards other disciplines that place themselves at the service of the good of humanity as ‘fellow travellers’ (MH 23). Today – as Pope Francis emphasised – the ‘recovery of an interdisciplinary approach is certainly positive and promising, even in its “weak” form as a simple multidisciplinary approach that favours a better understanding from several points of view of an object of study. It is all the more so in its “strong” form, as cross-disciplinary, situating and stimulating all disciplines against the backdrop of the Light and Life offered by the Wisdom streaming from God’s Revelation.’[110] Indeed, dialogue between different fields of knowledge is now recognised as necessary and even urgent, given that significant ethical implications relating to ecology and respect for the universe and our planet can be drawn from them. Moreover, science, philosophy and theology share that inner attitude of wonder and admiration towards the universe from which they ultimately arise. Whilst the formation of galaxies is a striking marvel, the organisation of a single-celled organism surpasses it in complexity and inspires even greater admiration.

3.2 In dialogue with other worldviews

51. [Introduction]. Every worldview, which includes an attempt at a comprehensive explanation of the entire universe and its meaning, comprises beliefs and premises that cannot be scientifically proven, often of a religious nature and with implications that are implicitly or explicitly theological. We shall briefly examine some of these.

3.2.1 Some philosophical proposals

52. [Immanentism, pantheism and panentheism]. An immanentist understanding of the cosmos – which undoubtedly encompasses a broad spectrum of distinct forms – does not recognise or simply denies the existence of a creator God distinct from the world. In some of its forms, it draws on the supposed inability of human beings to infer, from knowledge of the cosmos, the existence of a creative Principle such as a transcendent and personal God. According to this logic, the cosmos, in its mere factuality, would be the only reality to which one could and should refer, without any higher or eschatological purpose. However, the question of meaning and ultimate purpose, both of one’s own existence and of the universe in which one lives, is intrinsically part of the human condition. The unjustified assertion of the untranscendentability of the world does not, in its radical form, provide a satisfactory answer to this question. Some contemporary forms of pantheism or cosmic spirituality tend to attribute an ultimate or divine value to the world itself, seeking a synthesis between ecological awareness, scientific progress and the rejection of a personal and transcendent conception of God.

Other philosophical currents and a part of contemporary theology lean instead towards panentheism. According to this perspective, the world exists within God, whilst God, at the same time, transcends it.[111] In contrast to classical theism, which often emphasises the distinction between God and creation, and pantheism, which identifies God with the world, panentheism conjoins divine immanence and transcendence. This perspective offers an interpretative framework for understanding how God can be intimately present in every aspect of reality without coercively determining it. God, in his gratuitous mercy, makes room for a creation that is genuinely distinct from him, whilst at the same time continuing to be the foundation that sustains it.

53. [Deism and supernaturalism]. There are two conceptions which are, in fact, widely held, though not always consciously so, amongst both believers and non-believers: deism and supernaturalism. On the one hand, there is a form of deism that conceives of a creator God whose action, however, is limited to bringing the cosmos into being, without any form of presence within it and without any possibility of speaking of his action in relation to it in terms of the ‘continuous creation’ affirmed by theological tradition. It is in fact believed that this God, having given the initial creative impulse, like a skilled watchmaker who has wound up his creation sufficiently, can ultimately take no further interest in its affairs. This view fails to do justice to the fact that creative action pertains to God permanently, since creation is constituted and sustained in its being, at every moment and in every expression, by the being and will of God himself. On the other hand, following a conception we term ‘supernaturalism’, even some believers end up imagining the Creator as an agent entirely external to creation, acting like a craftsman or builder in relation to his product. This does not correspond to the biblical conception, which affirms God’s intimate presence within creation, a presence consistent with his role as Creator and, at the same time, transcendent in relation to creation.

54. [The philosophical idea of creation]. From a purely philosophical point of view, through the proper exercise of the intellect and its metaphysical capacity, it is possible and justified to uphold and argue the thesis that the world points to the first cause which brought it into being and sustains it in existence. This is a constant assertion in the theological tradition – as, for example, we have seen in St Bonaventure and St Thomas – and one which is attested to by Sacred Scripture and reaffirmed by the Magisterium (cf. Rom 1:19–20; Wis 13:1–7; DH 3004). Moreover, the profound intelligibility to be found in the world around us, which we can discover through the exercise of reason and upon which we rely to utilise the resources made available to us by nature, makes plain the ‘logic’ inherent in the cosmos. And it becomes possible – at a further level, such as that expressed by faith – to link the intelligibility intrinsic to nature to a higher purpose. All these aspects, which are philosophically tenable, are consistent with a theological view of creation.

3.2.2 The Christian theological perspective in dialogue

55. [God the Creator: a coherent explanation]. Faith in a God who is the Creator of the universe, grounded in the Revelation that God Himself has made of Himself and of His plan of salvation, thus stands out as a rationally sound and coherent option, which allows respect for the findings of the various sciences and the demands of a philosophical understanding of reality, integrating them into a broader vision without unduly interfering in their respective fields of research.[112] In accordance with the fullness of revelation in Christ, faith in God the Creator points to a God who creates freely and out of love,[113] inasmuch as He is love in Himself, as Christian faith in the Triune God professes. The Triune God, in fact, is capable of creating the other distinct from Himself, of endowing it with its own ontological subsistence, and of being intimately present within His creation without losing His transcendence. In this way, the identity of creation and human freedom are preserved, guided from the very beginning and accompanied so that they may reach their fulfilment, through the action of the Word and the Holy Spirit. Consequently, our relationship with nature (ecology) is a constitutive dimension of our relationship with God the Creator (theology). It is necessary therefore to explore the full meaning of ecology, namely, living responsibly as human beings in our common home alongside all other creatures, beginning from faith (cf. infra nos. 103–109 and Chapter 3).

56. [Creation and the physical origin of the universe]. In the light of this Trinitarian conception of God the Creator, it is worth clarifying that creation, in the theological sense, does not refer primarily to the physical origin of the cosmos, but rather to the metaphysical relationship by virtue of which everything that exists derives its being from God. To say that God creates does not, therefore, mean placing Him at the beginning of the temporal sequence of cosmic events as one physical cause amongst others, nor does it mean resorting to Him to explain what cosmology has not yet clarified regarding the early stages of the universe. Rather, it means recognising that the world, at every moment, is ontologically dependent on Him without being absorbed into Him. In this perspective, the theological tradition has spoken of creatio ex nihilo to rule out the possibility that the world derives from pre-existing matter or from a necessary emanation of God: the Creator freely calls into existence that which would not exist of its own accord. Cosmology may legitimately investigate the early stages of the universe and formulate various models concerning its possible temporal beginning; faith, on the other hand, affirms the metaphysical origin of the world, grounded in its contingency and its dependence on the Creator. This distinction avoids identifying creation with the Big Bang or with any other cosmological model, which would thereby tie a truth of faith to a specific scientific theory; it also avoids separating God from the world, as if the act of creation were a remote event. Even if one were to hypothesise a universe without an absolute temporal beginning, the question would remain as to why it exists and does not possess within itself the ultimate reason for its own being. God is not one cause amongst others, but the transcendent foundation of the being of all causes; creation possesses a real autonomy, but this autonomy is received and continually sustained in the relationship of creation.

57. [The human being]. In the Christian faith, the existence of the human being is illumined in Christ with a transcendent meaning and a ‘supreme’ vocation (cf. Gaudium et spes, 22). The fact that Homo sapiens appeared on planet Earth is, moreover, a fact that never ceases to arouse wonder. So much so that we are led to reflect with wonder on the chain of factors that led to such a marvellous outcome, which never ceases to raise profound questions about the meaning and origin not only of human beings but of the entire cosmos within the context of which human existence has been made possible. Of course, the recognition of this formidable chain of events cannot, in itself, be regarded either as proof of God’s existence or as an indicator pointing to a Creator God who designed the universe for the sake of human beings. Nevertheless, it can legitimately be interpreted, in the light of faith, as a significant feature of the original design of a Creator God, who has marked the course of creation, which He freely willed, in a Christological and, therefore, anthropological sense.[114] In this way, from the perspective of the Christian theology of creation, one can better understand the specific responsibility of human beings to care for creation in accordance with the design of their Creator.

58. [Consciousness and the human soul]. Of all the mysteries of the cosmos, the greatest for us are self-awareness, freedom and the human soul. On the one hand, evidence of a special relationship with the deceased, expressed through the practice of burial and prayer for the dead, dates back to the dawn of human history. Such practices may point to a perception of a transcendent dimension in the human being. On the other hand, if it were claimed that human self-awareness is based exclusively on physical, chemical and biological processes of the utmost complexity, or that it is to be reduced entirely and solely to these processes, as being totally determined by them, this would in itself deny human freedom and, in so doing, the responsibility that flows from it.[115] Scientific data on self-awareness – already observable in highly evolved primates – can, and indeed must, be situated, in light of the uniqueness inherent to the human being, within a broader and deeper framework in which the following are combined, without confusion and without separation: the evolutionary development of the universe, in accordance with the laws studied by science, and the action of God the Creator in relation to the spiritual nature of every human being, as attested by Revelation. Without contradicting, but rather by highlighting the discoveries made by the sciences, the understanding of faith is committed to showing how God wished to bring about his plan of creation in order to have the human person as his free interlocutor and partner.

59. [Christological reinterpretation]. In the Christian perspective, then – as we have already emphasised – creation bears a Christological imprint (cf. nos. 10–14). For this reason, the Incarnation of the Word, in which by grace is realised the intimate unity of the created flesh of a human being with God, reveals the call to union with God, in and through Christ by virtue of the Holy Spirit, of every human being and all creation:

‘The Incarnation of God the Son signifies the taking up into unity with God not only of human nature, but in this human nature, in a sense, of everything that is "flesh": the whole of humanity, the entire visible and material world. The Incarnation, then, also has a cosmic significance, a cosmic dimension. The "first-born of all creation," [Col 1:15], becoming incarnate in the individual humanity of Christ, unites himself in some way with the entire reality of humanity, which is also "flesh"[116] and in this reality with all "flesh," with the whole of creation.’[117]

Chapter II. The Human Being in our Common Home

1 God’s original plan for human beings

60. [Introduction]. To understand anthropology and to perceive clearly the place of human beings in the cosmos, from which their specific role and responsibility in our common home follow, it is essential to undertake a theological reading of the first chapters of the Book of Genesis,[118] discerning their meaning and significance in the light of the event of Jesus Christ as attested by the New Testament.

1.1 A theological reading of Genesis 1: in the image and likeness of God

1.1.1 Image and likeness

61. [The creation of humankind]. The first account of creation culminates in the rest of the seventh day, a day specially blessed and consecrated by God, which was intended to commemorate and glorify the greatness of the Creator, the meaning of creation and the vocation of the human being. Indeed, God’s creative activity culminates on the sixth day with the creation of the human person[119] (hāʾādām) (cf. Gen 1:26). The biblical wording refers to both male and female (cf. Gen 1:27), and thus to the human being as such (ánthropos). The biblical text reads: ‘God said, “Let us make the human being in our image (ṣelem) and in our likeness (dəmût)”’[120] (Gen 1:26).

62. [Image]. The Mesopotamian equivalent of ‘image’ (ṣalmu) refers to a statue as a representation of a king. This idea persists into later periods (cf. e.g. Wis 14:15–17). Through the use of this metaphor, the human person, as the image (ṣelem) of God, is granted the prerogative to represent Him; that is, to relate to other human beings and to the rest of creation in the manner of God Himself, whom they represent. Only in this way do human persons also live out their relationship with God, respecting the being they have received and shaping their relationships in accordance with this original gift. It is the human being in his or her entirety, soul and body, who has been created in the image of God.[121]

63. [Re-reading from the New Testament: ‘imago Christi’]. Christian faith interprets the understanding of the human person as the image of God in a Christological light. Jesus Christ, in fact, reveals himself as the human being brought to full realisation of self. ‘Behold the human being’ – as the Gospel of John (19:5) attests through the words of Pilate. Being perfect in his humanity (cf. DH 301), Christ is the perfect human (cf. GS 22, 38, 41, 45). For this reason, the Christian faith affirms that ‘only in the mystery of the incarnate Word does the mystery of the human being take on light’(GS 22). Now, Jesus Christ is the Image of the invisible God (cf. Col 1:15; cf. 2 Cor 4:4), through whom all things were created. From this it follows – as the Fathers of the Church have already recognised – that, being created in the image of God, we human beings are in truth created in the image of Christ[122], the firstborn of all creation (cf. Col 1:15), the new Adam (cf. Rom 5:14).[123] Human beings are fulfilled to the extent that they conform to Christ, the firstborn of many brothers and sisters (cf. Rom 8:29).

64. [A Re-reading of the Fathers: ‘imago Trinitatis’]. The Church Fathers not only develop the Christological interpretation of the biblical motif of the image, but also explore it in depth from a Trinitarian perspective. Their starting point is the phrase ‘let us make’ (Gen 1:26) in the plural, which, as we have noted (cf. no. 8), from the second century onwards they interpreted as an expression of a dialogue taking place within the Trinity.[124] Two corollaries follow from this. On the one hand, the three divine Persons are involved in the creation of the human being.[125] On the other hand, according to some Fathers, such as St Basil the Great and St Gregory of Nyssa, this implies that the human person, being created in the image of God, is not to be understood merely as the image of the Logos, but as the image of the entire Trinity.[126] This perspective is further enriched in the Syriac tradition, which considers humanity’s relationship with the Trinity in a dynamic and existential manner. For Saint Ephrem the Syrian, the three names of the Trinity ‘are sown’ within human beings so that their perfection may develop in a Trinitarian manner. Thus, when the human spirit endures agony, it is moulded by the Father; when the soul suffers pain, it is ‘mingling’ with the Son; and when the body burns with a life of witness, it communes with the Holy Spirit.[127] This conception, rooted in patristic tradition, has lost none of its relevance:

‘At the heart of the Christian understanding of the human person lies the great biblical affirmation that men and women are created in the image and likeness (cf. Gen 1:26-27) of the Triune God. Created for relationship, every human person is planned and willed by God to enter into communion with him, with others and with creation.’[128]

65. [Likeness]. The Hebrew term ‘likeness’ (dəmût) refers to what makes one thing similar to another, such as the model of an altar to be reproduced in another place (cf. 2 Kings 16:10). It therefore denotes a type of relationship that implies the establishment of a certain equality (cf. Ps 58:5; Ezek 23:15). The use of this term in reference to human beings is surprising, for God is set apart from all else by an insurmountable distance. And yet, the likeness spoken of here places human beings in a privileged position. God desires them as his interlocutors. To this the whole of Scripture bears witness.

66. The Church Fathers sometimes distinguish between ‘image’ and ‘likeness’. In this context, ‘image’ refers to the ontological identity of human beings, which enables them to enter into relationship with God, with others and with creation; a capacity that may be obscured, tarnished or broken, but which always remains within human beings as an indelible imprint of what they essentially are in themselves by virtue of creation. Likeness, on the other hand, encompasses the existential dimension of the human journey, which was interrupted by sin with the loss of the original communion with God. When Christians, by virtue of the sacraments, allow the power of the Holy Spirit to act within them and cooperate with grace[129], they become ever more conformed to the Son, thereby also attaining likeness to God. The grace of sonship, which began at Baptism, unfolds within them to perfection.[130]

1.1.2 Blessing

67. [Blessing]. Once created, male and female (cf. Gen 1:27) receives a blessing: ‘God blessed them and said to them, “Be fruitful and multiply; fill the earth and subdue it; have dominion over the fish of the sea and the birds of the air and over every living creature that moves on the earth!”’ (Gen 1:28). The blessing is expressed in the same terms as in Gen 1:22, which refers to the first animals created. In this way, the account highlights a fundamental difference between inanimate beings and living beings. All come into being through the powerful word of the Creator. However, only living beings receive the blessing: ‘God blessed them, saying, “Be fruitful and multiply, and fill the waters of the seas, and let the birds multiply on the earth”’ (Gen 1:22). The blessing here does not signify a special consecration (cf. Gen 2:3) nor an act of a particular salvific nature. The blessing, in connection with the act of creation, expresses the inherent capacity of living beings to procreate. It denotes the transmission by God, the source of all life, of a life-giving force through fertility as a distinctive characteristic of living beings. It thus expresses the dynamism of creation, making evident the Creator’s imprint on creation through this generative and procreative force.

68. [The uniqueness of human beings]. In the case of human beings, this creaturely blessing points to the same reality as in animals: procreation and multiplication. However, there is a notable difference: God speaks only to human beings as interlocutors: ‘He said to them’ (wayyōʾmer lāhem: Gen 1:28), whilst over other animate beings He utters His word (lēʾmōr; Gen 1:22). There is therefore a threefold distinction to make. Inanimate beings are created by the word of God (creation). Upon living beings, created by the word of God, God utters a further word and they receive the blessing (creation and blessing). Human beings are created by God through his word, receive the blessing, and God addresses them once they have been created (creation, blessing and dialogue). This places the human person in a prominent position within creation, whilst remaining subject to God as his interlocutor, so as to realise their goodness in the image and likeness of God himself.

1.2 A theological reading of Genesis 2: primordial sociality[131]

69. [Primordial sociality]. Without human relationships, human beings do not truly exist. Human beings were not created for absolute solitude. This reality is explored in depth in the account of creation in the second chapter of Genesis. There, one can observe a sort of creative process divided into three stages.

70. [Divine Origin]. The first stage (Gen 2:4a–7) describes the creation of humankind: ‘Then the Lord God formed the human being (hāʾādām) from the dust of the ground (ʾădāmāh) and breathed into his nostrils the breath of life; and the human being became a living being’ (Gen 2:7).

71. [Difference from other living creatures]. In the second passage (Gen 2:8–20), the Lord God places the human being in the garden (v. 8), provides him with food (v. 9) and creates all the animals of the field and all the birds of the air by shaping them from the earth (v. 19), just as he did with the human being, so that they might keep him company: “‘It is not good for the human to be alone’” (Gen 2:18). It is pointed out, however, that, amongst all living creatures, the human being ‘found no one like himself (kəneḡdō) to help him’. The term kəneḡdō literally means ‘like (one who stands) opposite someone’. Thus, despite their common origin with other living creatures, human beings find no true ‘counterpart to themselves (kəneḡdō)’ among them. Despite the elements common to all living beings, they lack the specific quality of otherness and sociality that is proper to human beings. Whilst forming part of the animal kingdom, human beings possess distinctive characteristics that set them apart. This precludes the divine call to fraternity from being completely replaced by a relationship with domestic animals or by a sort of fusion with the universe.

72. On the other hand, it should be noted that in Gen 2:20 God entrusted Adam with an extraordinary task: to give names to the animals he had created. This highlights the capacities that are unique to human beings. Both Adam and the animals were formed (yṣr) from the earth (cf. Gen 2:7, 19) and therefore share the same origin. But whilst it was God himself who breathed the breath of life into Adam’s nostrils and transformed the dust from which he was formed into a ‘living being’ (Gen 2:7: nepeš ḥayyâh), literally ‘a living soul’, in the case of other living beings this action is attributed to Adam. Up to this point, the Hebrew text had referred to the other living creatures as ‘the living creatures of the field’ (ḥayyat haśśādeh), but when they receive their names from Adam, they become ‘a living soul’ (Gen 2:19: nepeš ḥayyâh). Thus, drawing on a possibility offered by the Hebrew syntax of this passage, it is suggested that Adam is asked to collaborate with God to complete the final phase of the creation of the animals (cf. the name God gives them in Gen 1:5. 8. 10): by engaging in the transition that leads wild animals to become ‘living beings’ (living souls), so that he might recognise them as such and welcome them into his own world. In summary, according to Genesis 2, the animals in some way require Adam’s intervention; he is entrusted with the task of perfecting creation through his action carried out in harmony with the divine plan. It is clear that this does not imply placing Adam on the same level as God the Creator, but rather recognising him as God’s principal collaborator (cf. MH 148; 233), with a responsibility towards other creatures that precludes indifference.

73. [Constitutive otherness]. In the third passage (Gen 2:21–25), as this dynamic process of creation reaches its climax, the creation of the human being is completed. A new beginning is signalled through the slumber into which Adam falls (v. 21). Adam does not know the origin of the woman, just as he does not know his own origin. The woman does not come from Adam’s own making, which emphasises that she is not something or someone at his disposal. She is a gift from God. Adam can only accept this gift for what it is if he respects the radical otherness that constitutes the difference between man and woman, between one person and another. This difference, however, does not overshadow the radical similarity, which is manifested in the discovery of someone who is finally truly ‘a match’: ‘Adam said, “This is now bone of my bones and flesh of my flesh!”’ (Gen 2:23). These are the first words Adam utters: language, in fact, requires an interlocutor with whom to interact as a constitutive element of otherness. By preserving the difference of otherness whilst recognising similarity – as suggested by the alliteration in the Hebrew text: ‘Her name shall be “woman” (ʼiššâh), for she was taken out of man (ʼiš)’ (Gen 2:23) – one arrives at the most primordial form of social unity through the exercise of freedom: ‘That is why a man will leave his father and mother and be united to his wife, and the two will become one flesh’ (Gen 2:24; cf. Eph 5:31–32). In true otherness there is nothing to hide: they were naked, yet they felt no shame (cf. Gen 2:25).

74. It thus becomes clear, at the root of and in the light of sexual difference, that social differences, whatever they may be, of ethnicity, gender, culture, social or economic status, do not in any way imply a hierarchical gradation: their use to discriminate or subjugate clearly deviates from the plan of creation, in which all human beings, without distinction, were created in the image and likeness of God.

75. [Summary: three essential relationships]. Until the relationship of essential otherness is established, which takes concrete form in the man-woman couple, the process of the human being’s formation remains radically incomplete. Hence, (a) in addition to the fundamental relationship with God as Creator (cf. Gen 2:4a–7) (b) and the indispensable relationship with plants, which provide food, and with animals (cf. Gen 2:8–20); (c) the interpersonal relationship in otherness (cf. Gen 2:21–25) is also essential in defining the human being. Only through the development of one’s being within these three relationships, in accordance with God’s creative plan, does the human being become what he or she is. Clearly, without the exercise of one’s own personal self-awareness and freedom, it is not possible to set up any of these relationships in an authentically human way. And, on the other hand, far from constituting itself as an ‘isolated consciousness’ (EG 2, 8, 282), self-awareness grows in freedom through the exercise of the three relationships that constitute the human being.

1.3 The task inherent in the original plan

76. [God’s interlocutor]. In the account set out in the opening chapters of Genesis, the human being’s dialogue with God is articulated precisely through the description of the way in which the human being relates to creation, according to three closely interrelated aspects: dominion over creation, the care or stewardship of creation to enable it to flourish in accordance with the divine plan, and, as the decisive factor, obedience to the divine command. This mandate is expressed through the relationship that God asks human beings to have in regard to the tree of the knowledge of good and evil present in the garden. The metaphor of the tree undoubtedly relates to food, which is essential to human life, marking the way in which human beings are integrated into the natural environment.

77. [Dominion: Gen 1]. The unique and privileged position of human beings in creation is reflected in the task they receive from God in the account of Gen 1: ‘have dominion (rādah) over the fish of the sea, the birds of the air, the cattle, all the wild animals and all the creatures that creep on the earth’ (Gen 1:26); ‘Be fruitful and multiply; fill the earth and subdue it (kābash); have dominion (rādah) over the fish of the sea, the birds of the air and every living creature that moves on the earth’ (Gen 1:28). Whilst for the peoples of antiquity it was a matter of survival to subdue the violent elements of nature which, if unleashed, could easily lead even to the extinction of the human species, an exaggerated and distorted interpretation of this mandate has led to the belief that human beings were granted despotic and unlimited dominion over all creation (cf. LS 67). We cannot ignore, with shame and repentance, the impact that this misinterpretation of the profound meaning of the biblical text has had on the exploitation and mistreatment of creation.

78. [Stewardship in the image of God]. The task entrusted by God to human beings must be seen as part of the understanding of the human person as the image of God. Consequently, the normative and inspiring model for human action towards creation is found in God himself, who exercises his power not in a despotic, arbitrary or selfish manner, but by promoting the life of his creatures (Cf. Ps 36:7; Ps 145:9; Gen 7:1–3; Dan 4:11; Sir 18:13; Wis 11:24) and by sustaining the whole of creation through his care.[132] This defining feature of God’s manner of acting is in full harmony with the law of the Jubilee year (cf. Lev 25), which encompasses mercy towards the land, livestock, all animals and all kinds of people: slaves, labourers, migrants and landowners (cf. nos. 112–114). In accordance with this provision, there resounds the great commandment of the Sabbath (Deut 5:12–15), situated at the heart of the Decalogue,[133] to which we shall return shortly.

79. [Stewardship: Gen 2]. The task entrusted by God in the account of Gen 2 is, in fact, phrased differently: ‘The Lord God took the human being and placed him in the Garden of Eden to cultivate and keep it’ (Gen 2:15). The first verb used, translated as ‘cultivate’ (‘ābad), refers to work.[134] This is also mentioned in Gen 2:5, where it is stated that ‘there was no human being to cultivate the ground’. The second verb, translated as ‘keep’ (šāmar), refers more directly to stewardship in a twofold sense: respect and protection. Human beings are entrusted with the task of making life flourish by way of an action that does not replace that of the Creator, but stands in continuity with it (cf. 1 Cor 3:9; GS 50). This task is not abolished by sin. It does, however, entail an enormous responsibility for human beings in the exercise of their freedom. Indeed, whilst they are placed above the rest of creation as God’s direct interlocutors, their task is fulfilled only if they act in accordance with God’s plan, acting as ‘stewards’. In this regard, given that both verbal roots appear elsewhere to refer to the worship of God (cf. Ex 3:12; 4:23; 7:16; Deut 6:13; 10:12) and to the fulfilment of his commandments (cf. Gen 17:9–10; 18:19; 26:5; Ex 12:17; Deut 4:2; 10:13), it may be inferred that the work carried out by human beings in the garden, in creation, in our common home, is a concrete way of serving God and worshipping him.

80. [The commandment]. Placed in the garden, with the task of making it flourish according to the divine plan, human beings also receive a commandment: ‘The Lord God gave this command to the human being: “You may eat from any of the trees in the garden, but from the tree of the knowledge of good and evil you must not eat, for on the day you eat from it, you will surely die”’ (Gen 2:16–17). Death, as a rupture in the relationship with God, is not part of God’s design, for He breathed life into humankind (cf. Gen 2:7).[135] What the transgression brings about, in addition to disorder in the life of creation and a series of punishments inflicted upon humankind (cf. Gen 3:16–20), is expulsion from the Garden of Eden (cf. Gen 3:23–24).

81. [Meaning of the commandment]. The meaning of the commandment ultimately lies in the fact that human beings are called to recognise their place in the divine plan. The restriction indicated by the commandment expresses the fact that human persons receive their life from God as a gift. It is not, therefore, the original source that defines good and evil, as symbolically expressed in what is laid down concerning the tree of the knowledge of good and evil. Human goodness stems from curbing one’s greed and not allowing oneself to be guided by the greedy urge to appropriate, from not setting oneself up as an unlimited absolute that indulges every whim, but from knowing and accepting oneself as a finite being and, in this way, correctly situated before God and within creation. The commandment, which is in itself a gift (cf. Deut 5:2; 9:20; 10:4; Neh 9:4) for a good life to be lived in the garden, proves to be a decisive test for human beings (cf. Gen 22:1; Ex 15:25; 16:4), which challenges the exercise of freedom, directing it towards the good and the truth received from God.

1.4 A teaching from an ecological perspective: the sabbatical principle

82. [The sabbatical principle]. In the first account of creation we find the root of the sabbatical principle, so widely present in the Torah, with its ecological implications.[136] The shabbat is a day of rest, following the example of God the Creator (cf. Gen 2:2–3; Ex 20:8–11). It also expresses the grateful remembrance of the deliverance from Egypt (cf. Deut 5:12–15) and of the entry into the Promised Land (cf. Deut 3:20; 12:9). In this way, the shabbat intertwines faith in God the Creator and Saviour, whose honour and reverence are demanded by and expressed through the rest of animals, fields and people, and through whom we enter into a relationship of respect, conviviality and harmony with our common home. In this way, an alternative is offered to the dynamic inherent in the technocratic paradigm (cf. LS 106–114; MH 92–96), which pursues maximum efficiency and production as ends in themselves and at any cost. Human life needs refreshment, celebration, spontaneous encounter and rest. The Sabbath is a more contemplative day than the others. It teaches us to adopt a selfless outlook, free from the desire to possess, dominate or attack. The Sabbath is the day par excellence for wonder at the work of God that surrounds us. It is the day of the fraternal meal, when family and friendship bonds are nurtured by sharing the fruits of the week’s labour at a festive table. It is the day on which we acknowledge God’s gifts and remember them more deeply, with special devotion, setting aside more time for prayer and praise. It is the day on which we reposition ourselves as grateful in our finitude before God, before our neighbour, before creation, and before ourselves, making space for the gratuitous.

83. [The first and eighth day]. In the Christian Tradition, the first day of the week, the dies dominicus[137] (Rev 1:10), is understood as a continuation of the Sabbath, embracing its meaning and incorporating into it a new Christological and creatural dimension, which brings the meaning inscribed in the Sabbath to its complete fulfilment.[138] Sunday foreshadows the last day (cf. Acts 1:11; 1 Thess 4:13–17; Rev 21:5), on which we hope to enter into God’s rest (cf. Heb 4:9–11). For the Church Fathers, Sunday is, at the same time, the first day of the week, following the Sabbath, and the eighth day, the beginning of the new creation.[139] It recalls the beginning of creation in Christ (the first day) and its fulfilment in Christ (the eighth day), the day of the Lord’s Resurrection (cf. Mk 16:2, 9; Lk 24:1; Jn 20:1), the day on which the full transparency of the Holy Spirit’s indwelling in the body of the Risen One is revealed. In baptism[140] and in the Sunday Eucharist, both days, the first and above all the eighth, are present. Thus, we are truly set within and actively participate in the culmination of history and creation: its fulfilment in Christ. All matter, bearing the Trinitarian imprint, beginning with its very materiality, exemplified in the grain of bread and the grapes of wine, is permeated by the desire to attain its eschatological fulfilment (cf. Rom 8:19–22) through transformation and recapitulation in Christ (cf. Eph 1:10), which is already taking place in sacramental anticipation through the ecclesial liturgy that the children of God celebrate in His honour. We can thus perceive how God’s original plan includes care for our common home, together with respect for the rhythms which generate a fundamental harmony in the garden: between the earth, its plants, animals, human beings and the praise of God.

2 Why are we inflicting such grave harm on our common home? The sin against creation

2.1 The breach of the original mandate

84. [The deception at its root]. In the opening chapters of Genesis, Scripture illustrates in an exemplary manner how, from the very beginning of humanity, human freedom has succumbed to deception and sought to take the place of God (cf. Gen 38), turning away from the Creator’s original command. Deception is articulated by the serpent’s forked tongue: ‘No, you will not die; for God knows that on the day you eat of it, your eyes will be opened and you will be like God, knowing good and evil’ (Gen 3:4–5). God has revealed his plan to human beings as rational and free beings. Yet, whenever human beings believe the serpent, they have already distrusted God and turned away from Him. The promise of being like God, prompted by envy, leads to disobedience, typical of those who do not believe what God has spoken.

85. [The dynamics of temptation]. At the crucial moment in the formulation of the temptation and in what leads the woman to yield to it, three factors come together simultaneously, supporting and reinforcing one another, plus a fourth that unifies the whole.

1) The promise of knowledge that would make us like God ‘in knowing good and evil’ (Gen 3:5), usurping God’s place in judging good and evil.

2) Food that truly satisfies and is suited to human beings. Food, that which may and may not be eaten, constitutes one of the fundamental threads of the narrative (cf. Gen 1:29–30; 2:5, 7, 9, 16–17; 3:2–3, 5–6, 11–14, 17–19, 22). The temptation lies in failing to respect what God has established as good food for us.

3) The attraction, which seduces desire and cupidity, holds out the false promise of knowing good and evil in relation to food, giving the final impetus (cf. Gen 3:6). The action based on this radical deception has the paradoxical effect of revealing the fundamental vulnerability of human beings (cf. Gen 3:7). Human sin has brought about a cosmic disorder (cf. Gen 3:16–17): we no longer dwell in the garden of paradise, but in a place where we must live alongside catastrophes and the struggle for survival amongst the various species.

4) Eve succumbs to the deceptive seduction that promises immortality through the serpent’s forked tongue: ‘No, you will not die’ (Gen 3:4). The gift of immortality is received from the One who alone is immortal and eternal. For this reason, the Church Fathers already spoke of the Eucharist as the medicine of immortality: ‘phármakon athanasías’[141], alluding to the gift of immortality in Christ conferred by partaking of it.

86. [The rupture of essential relationships]. The transgression of God’s original plan results in the rupture of the three essential relationships within which human beings live out their existence: with God, with other human beings, and with creation. This inevitably leads to deterioration at the personal, social and cosmic levels. Creation remains wounded by human sin until the Saviour, taking upon himself the full weight of the calamity caused by sin, redeems it through his redemptive suffering.

2.2 Highly alarming data on ecological deterioration

87. Pope Francis (Laudato si', Querida Amazonia, Laudate Deum), following in the footsteps of his predecessors,[142] did not cease to draw upon the findings of scientific studies so as to issue, on that basis, an urgent call for an integral ecological conversion, expressed in various ways. Throughout history, human beings, in their interaction with the natural world around them, have practised harmonious co-existence with nature in different eras and regions, especially in cultures with fewer technological capabilities and a stronger sense of kinship with the environment. Yet they have also interacted with the environment through predatory and destructive actions, thereby failing to respect the divine mandate to care for our common home. To illustrate the scale of what the deterioration of our common home entails today, we turn to some data that enjoy broad consensus within the scientific community. This is but a small example of the consequences for our common home of the prevalence of a technocratic paradigm, that is, the excessive and ethically unchecked use of modern technological means (cf. MH 101).[143]

88. [Biological diversity]. Biological diversity is not an exotic or extravagant luxury, nor is it a romantic relic of the past. ‘All food systems depend on biodiversity.’ It is therefore ‘a key factor for the achievement of food security and improved nutrition (SDG 2) and the provision of clean water (SDG 6)’.[144] The overall situation remains very alarming. ‘On our current trajectory, biodiversity, and the services it provides, will continue to decline…’.[145]

89. [Environment]. According to the sixth United Nations report, the overall condition of the global environment has continued to deteriorate since the first edition [in 1997], despite environmental policy efforts across all countries and regions.’ [146] Here are some very worrying examples. Air pollution is caused by human activity. [147] This has a very negative impact on everyone’s health, particularly that of the most vulnerable: children, the elderly and the poor. It is estimated that ‘zoonoses are estimated to account for more 60 per cent of human infectious diseases.’[148] These diseases, which are transmitted from animals to humans, are directly proportional to the environmental degradation caused by human beings themselves. The availability of fresh water is under threat. ‘Water quality has worsened significantly since 1990’,[149] due to various types of pollution: plastics and microplastics, fertilisers, heavy metals, pesticides, persistent organic pollutants and others.

In conclusion, ‘Despite global efforts and calls for action, our planet has already entered into uncharted territory, facing global environmental crises of climate change, biodiversity loss, land degradation and desertification, and pollution and waste. These interconnected crises, which are undermining human well-being and are primarily caused by unsustainable systems of production and consumption, reinforce and exacerbate each another and need to be addressed together.’[150]

90. [War]. This state of affairs, perverse in itself, reaches its climax in wars. Not only do they brutally accelerate ecological deterioration and the pollution of land, rivers and air, but they often even pursue this intentionally as a weapon of aggression: the burning of villages and fields, the destruction of crops, the laying of mines, and the firing of grenades, not to mention the destruction of infrastructure, homes, factories and hospitals. And, above all, there is the killing of human beings, many of whom are innocent. The prophet Jeremiah already identified defeat in war with environmental and urban deterioration (cf. Jer 4:5–26).

91. [The extremely serious repercussions for the poorest]. This situation falls most heavily and causes the greatest suffering amongst the poorest, both amongst those with fewer resources within wealthy countries and, above all, in poorer countries (cf. LS 176) and amongst indigenous communities. [151] They suffer from the exploitation of the natural resources at their disposal, leading to the deterioration of the sustainability of their respective ecosystems, as is exemplified by the cases of the Amazon[152] and the Congo. [153] Moreover, these countries are often exploited as dumping grounds for toxic waste. Being far more vulnerable to changes in the ecosystem, they suffer most from the effects of pollution (cf. LS 20); they are more directly affected by ecosystem changes in agriculture, fisheries and forests (cf. LS 25), resulting in more pronounced migration due to the ecological deterioration of environments vital to their subsistence (cf. LS 25). The populations of these countries consume poorer quality water (cf. LS 29) and face greater difficulties in accessing drinking water (cf. LS 30). In short, these are the countries where the highest number of people die prematurely (cf. LS 48). In the words of Pope Francis: ‘Today we have to realize that a true ecological approach always becomes a social approach; it must integrate questions of justice in debates on the environment, so as to hear both the cry of the earth and the cry of the poor.’[154] (cf. LS 49).

92. [The need for radical change]. The priestly account in the Book of Genesis (Gen 1–9) describes how the created world, which was originally good, has been marred by human corruption. It also sets out the commitment to a re-creation of the damaged world, which requires a change in values. Even today, in order to respond to the unprecedented ecological crisis we are facing, scientific and technical solutions are certainly needed, along with improvements in governance (cf. LS 167), more effective institutions, a global operational consensus (cf. LS 164), substantial changes in systems of production, consumption, transport and energy use, appropriate legislation that is properly enforced, assessment of the impact of the strategies adopted, regional and local adaptations, and much more besides. However, at a deeper level, a change in cultural values is required, [155] without which all these measures will prove ineffective. We are called upon to set in motion a genuine ecological transformation of our way of life. No social group and no part of the planet can consider itself immune to the devastating effects of the deterioration currently taking place. Faced with an evil of a collective nature and a truly global scope, the path to a solution must also be collective and global in nature.

2.3 A bold diagnosis: sin against creation and the Creator

93. [A growing awareness of sin]. Observing human actions, interpersonal relationships and the cry of the earth (cf. LS 2), we cannot fail to recognise the enormous influence that results from yielding to the temptation to regard human beings and their boundless desire for power over creation as the ultimate source of every criterion for defining good and evil. Is this not the very bait with which the serpent tempted humankind from the very beginning: ‘you will be like gods’ (Gen 3:5)? It is because we succumb to this distorted logic, rather than follow the guidelines inscribed in creation’s anthropology, that we also cause disorder in the cosmos. Whilst there is an undeniable element of personal responsibility in all this, [156] it is also necessary to recognise that the damage inflicted on the environment goes far beyond the levels of individual, family and small-community responsibility, involving the lifestyles of wider communities and the economic and development choices of actors with greater influence, which endanger the quality and very survival of human life on the planet, together with that of other species.

94. [Background in the Magisterium]. In this regard, the urgency of recognising, in harmony with the teaching of Revelation, the existence of a sin relating to the care of creation has increasingly taken root in the Church’s consciousness. [157] Pope Francis referred to an ‘ecological sin’, [158] although this formulation has not become fully established within the Catholic Church; nevertheless, it has encouraged a commitment to exploring this issue in depth. It is worth quoting here the wording already used by John Paul II during his apostolic visit to Poland, echoing the words of the Polish bishops: ‘We therefore need to realize that every action which ignores God’s rights over his world, as well as the rights of human beings bestowed upon them by the Creator, is in conflict with the commandment of love . . . We need to realize therefore that there can be a grave sin against the natural environment, one which weighs on our consciences, and which calls for grave responsibility towards God the Creator’ (pastoral letter of 2 May 1989).’[159] The Synod on the Amazon, in its final document, was even more incisive:

‘We propose to define ecological sin as an action or omission against God, against one's neighbour, the community and the environment. It is sin against future generations, and it is committed in acts and habits of pollution and destruction of the harmony of the environment. These are transgressions against the principles of interdependence, and they destroy networks of solidarity among creatures (cf. Catechism of the Catholic Church, 340-344) and violate the virtue of justice.’[160]

More recently, Pope Leo has emphasised the same point:

‘That is not all. Nature itself is reduced at times to a bargaining chip, a commodity to be bartered for economic or political gain. As a result, God’s creation turns into a battleground for the control of vital resources. We see this in agricultural areas and forests peppered with landmines, “scorched earth” policies, conflicts over water sources, and the unequal distribution of raw materials, which penalizes the poorer nations and undermines social stability itself. These various wounds are the effect of sin. This is surely not what God had in mind when he entrusted the earth to the men and women whom he created in his image (cf. Gen 1:24-29).’[161]

It is worth noting that Pope Leo simultaneously links damage to nature with a deviation from the plan entrusted to human beings by the Creator. An appropriate formulation of what constitutes the sin in question here must express both factors: not only environmental or ecological damage, but also, and first and foremost, the refusal to follow God’s intended plan for creation. As the Synod on the Amazon emphasises, it is from this that harm to other human beings, both now and in the future, also stems. In the sin against the Creator and against creation, which is his work, the three essential relationships through which the human being finds expression are compromised.

95. [Analogy with social sin]. We propose understanding sin against the environment in a manner analogous to how concepts of social sin [162] and structures of sin [163] have gradually taken shape. The sin we are dealing with here clearly entails a social dimension. Indeed, ‘also social is every sin against the common good and its exigencies’.[164] There is no doubt that a habitable common home is a fundamental expression of the common good.[165] Furthermore: ‘The term social can be applied to sins of commission or omission on the part of political, economic or trade union leaders, who though in a position to do so, do not work diligently and wisely for the improvement and transformation of society according to the requirements and potential of the given historic moment’.[166] Social sin is so called because it is directed against society as God intended it to be, that is, attentive to the common good in accordance with the just order of social co-existence.

96. The historical moment we are living through demands urgent action from everyone, starting with those responsible for public life, to ensure the sustainability of the planet and the habitability of our common home. This is not merely an ethical requirement, but also a theological one. According to Pope Leo, environmental justice ‘can no longer be regarded as an abstract concept or a distant goal. It is an urgent need that involves much more than simply protecting the environment. For it is a matter of justice, social, economic and human. For believers it is also a duty born of faith…’[167] The social dimension of this imperative relates to the structures of an economic system inspired by the technocratic paradigm, which fails to take account of the common good (cf. LS 106–114). This is not an inevitable fate: technology can and must be used in a way that respects the environment and serves the common good. [168] There has been no human life without technology since the days of homo faber. The current economic system is the result of a series of human decisions. Throughout history, various economic models have succeeded one another. It is in our hands to establish an alternative system, one that serves the lives of all, is governed by the principle of sustainability, and respects the biorhythms of our common home.

97. [Sin against creation and the Creator]. We therefore opt for a formulation that is clearly theological, favouring terms that denote concepts specific to the faith over those specific to the sciences, such as, for example, the term ‘ecocide’. Furthermore – as emphasised by Pope Leo XIV – we believe it is appropriate to favour a formulation that simultaneously implies both the harm inflicted upon nature and the failure to recognise, or even the rejection of, the Creator’s plan, which entails entrusting human beings with the stewardship and care of our common home. None of this, it seems to us, is sufficiently clear in the term ‘ecological sin’, which has sometimes been used (cf. supra QA 82). We propose that this sin against our common home be understood as a sin against creation and against the Creator, inasmuch as it violates the meaning of creation intended by God the Creator. The term ‘creation’ in itself has a profoundly theological meaning: it directs us to think not so much of the mere sum of all created beings, but of each and every one of them insofar as they are related to an origin in God who constantly sustains and contains them. On the other hand, every sin is rooted in our relationship with God. The Creator has entrusted us with the mandate and task of caring for, and even perfecting, our common home. To fail to do so, whether through action or omission, is disobedience to God. By failing to care for our common home with sufficient wisdom, diligence and short-, medium- and long-term vision, we not only fail to respect God’s plan and mistreat creation, but we also harm our neighbour, particularly the poorest and future generations. Sin against creation, therefore, concerns our relationship with God the Creator, with our neighbour, and with creation itself, as it distorts the three relationships that constitute us.

3 The Christian proposal

98. [Approach]. Behind the ecological crisis lie, amongst other causes, the technocratic paradigm (cf. LS 106–114; LD 20–33) and its fallacious and destructive anthropological foundation (cf. LS 101–136), with the fatal predatory attitude that ensues. To tackle this crisis, social, scientific and philosophical movements have emerged which, whilst often starting from valid concerns, end up proposing a vision that, in some cases, is incompatible with Christian anthropology. We thus frequently find ourselves faced with two extremes: predatory anthropocentrism and certain environmentalist philosophies, such as biocentrism or ecocentrism. We seek to describe these two positions in terms of their underlying assumptions and their consequences, before going on to develop the proposal of Christian anthropology, which interprets the human person as the good steward and servant of creation, in accordance with Sacred Scripture and the Tradition of the Church.

3.1 Two unacceptable extremes: predatory anthropocentrism; biocentrism and ecocentrism

99. [Predatory anthropocentrism]. Undoubtedly, predatory anthropocentrism, which regards humanity as the absolute master of all creation, with ius utendi et abutendi, must be clearly rejected by Christians. Following the immanent logic that drives it, predatory anthropocentrism brings with it a dynamic of violence and exploitation, since it is not governed by respect for the other (nature), nor for others (one’s neighbour), nor for the Other (God the Creator), ultimately disfiguring the image of God imprinted on the human being and expressed in the relationships in which they live, imprisoning them in the desolation and anguish of a blunted conscience (cf. EG 2). Lives are plundered and sacrificed, and with them the future of many other lives, all in the name of the indiscriminate gratification of one’s own self-centred egoism.

100. [Biocentrism and ecocentrism]. In the justified rejection of predatory anthropocentrism, radically alternative positions are now being proposed, such as radical biocentrism (cf. LS 118) or ecocentrism, and amongst these in particular, deep ecology [169] (cf. LS 91). These positions are characterised by the exclusion of human beings from the centre of the universe, replacing them with ecosystems or life in the broadest sense, without recognising the distinct value of its various forms. Ultimately, they advocate a different system of values that does not correspond to God’s plan for creation. From this perspective, the human being does not enjoy a privileged status. From the perspective of ecocentrism, human beings are interpreted simply as part of a network of vital relationships that must be respected and preserved at all costs. Both positions, by advocating a radical egalitarianism, end up promoting an unrealistic and impracticable chimera. Human beings, as living beings that form part of the food chain, must in fact inevitably intervene in nature and derive benefit from it in order to survive. For the Christian faith, other creatures are ‘given’ to human beings also to provide them with food, clothing and protection (cf. Gen 1–2). The denial of the uniqueness of the human being, characteristic of these viewpoints, leads to conclusions that are impossible for the Christian faith to accept: regarding the death of vast numbers of persons as something beneficial for the well-being of other creatures. [170] At the same time, they regard human interference in the natural world as always harmful and deny the legitimacy of any justified and regulated use of non-human creatures in the service of human beings. These environmental philosophies therefore raise ethical questions with enormous implications, not to mention the fact that, in doing so, they fail to recognise the meaning of human dignity as the image of God.

101. [The danger of absolutizing nature]. A correct understanding of the relationship between human beings and the environment does not absolutize nature, regarding it as more important than the human person. If the Church’s Magisterium expresses a well-founded rejection of views inspired by ecocentrism and biocentrism, it is because they suppress the difference in identity and value between the human person, God’s direct interlocutor, and other living beings (cf. no. 68). This paves the way for a new form of pantheism tinged with neo-paganism, which sees nature as the original and ultimate principle of life, even for human beings.[171] Faced with these extreme positions, the Church is firmly committed to ensuring that environmental issues are addressed in a comprehensive and appropriate manner, respecting the ‘grammar’ that the Creator has inscribed in his work, conferring upon human beings the role of responsible stewards and managers of creation, a role which they must not abuse, but from which they cannot abdicate either.[172]

102. [Situated anthropocentrism]. Pope Francis proposed the concept of ‘situated anthropocentrism’ to describe the way in which humanity relates to the rest of creation according to God’s plan (LD 67), something taken up by Pope Leo XIV (MH 237). The expression emphasises that human life cannot be understood or lived in isolation from its relationship with the natural world, of which it forms a part. Without the manifold relationships that provide it with support and sustenance, human life is impossible. ‘Situated anthropocentrism’ is characterised by two aspects. First, it does not reduce human beings to just another being within creation and the divine plan, thereby depriving them of the dignity of being God’s direct interlocutor and intentional collaborator in his work. It follows from this that the Christian faith affirms a specific form of anthropocentrism. Secondly, it strips human beings of the claim that this dignity isolates them and places them above all creation to the extent of authorising them to make despotic and irresponsible use of it. Instead, it situates them in their rightful place, as those who can neither understand themselves nor survive without other creatures, their companions on the journey. It presents them as beings entrusted with the task of caring for creation, understood as our common home, whose planetary well-being contributes to their own personal and communal fulfilment.

3.2 The human being: steward and servant of creation

103. [Intention]. A reading of the opening chapters of Genesis points towards the proposal of an anthropology of care, when defining the specific place of human beings in our common home and the appropriate way to respond to the task entrusted to us by the Creator. There are many images in which both these aspects have been expressed within the Christian Tradition. Thus, for example, recourse has been made to the metaphors of the gardener or the shepherd, to the image of the Good Samaritan, and even to the figure of Christ’s kenosis, according to which we should be able not to take advantage of our privileged position in creation so as to place ourselves at its service and care for it. Within this multifaceted framework, we highlight two figures that aptly express both the unique position assigned to human beings and the exercise of the responsibility entrusted to them.

104. [Steward]. The concept of ‘steward’ encompasses a wide range of meanings. Some of its connotations may be criticised,[173] such as that which suggests a purely managerial and utilitarian use of creation, or that which implies a commitment to mere conservation, without explicitly including the key element that refers to the task of enabling creation to flourish according to God’s plan.[174] However, in the literature on environmental sustainability, the term does indeed allude to care, combined with the necessary expertise, so that the resulting action is effective, proportionate and appropriate in every context.[175] Therefore, the concept of the steward can be used to formulate more precisely our original mandate to care for creation. This concept, moreover, encompasses the fundamental aspect of not being the owner of what one administers. This is why stewards must carry out their work in such a way as to be accountable to the owner. Consequently, stewardship means responsible care, in accordance with the owner’s will and legitimate interests. St John Paul II expressed this idea as follows: ‘It is the Creator's will that human beings should treat nature not as ruthless exploiters but as intelligent and responsible stewards’,[176] recognising them as ‘the products, knowers and stewards of creation’.[177] If human beings stray from this plan or contradict it through the exercise of their freedom, they not only harm the good of creation, but also harm themselves, severing their bond with the Creator.

105. [Servant of creation]. The Greek Fathers, in particular Saint Gregory of Nyssa and Saint Maximus the Confessor, affirm that humans are ‘beings on the threshold’, situated both between the sensible and the intelligible worlds, and between the created and the uncreated worlds. For this reason, human beings have a specific role: to convey the life of God to the sensible and created world, and thus, in Christ, the Word of God made flesh, to be living instruments mediating God’s plan. [178] Saint Maximus the Confessor, for example, conceives of the world as a harmonious whole of creatures, each of which bears within itself a logos that makes it unique, good, loved and called to eschatological fulfilment. This is an indelible dignity and, at the same time, an irrevocable vocation that God is bringing to fulfilment at every moment for every creature.

106. Human beings are called to contemplate this harmony, which reveals God to them and leads them to Him. Creatures have a pedagogical function: by acting according to each one’s own logos, inscribed in them by God, they offer human beings an example that helps them progress in the fulfilment of their vocation. [179] Furthermore, creatures ceaselessly raise up their cosmic praise to God (cf. LS 76–100), as Saint Francis of Assisi so beautifully attested in the Canticle of the Creatures. This praise is transformed, in Christ through the Church, calling on the active participation of human beings, into a true Eucharistic liturgy in which creation, transformed by the action of grace, returns to God what it has received from Him. It is precisely here that the call of human beings to perfect creation by collaborating in the divine plan, which is expressed in the task God has given them to ‘name’ living creatures, is manifested in a gratuitous and surpassing way. [180] Thus a dynamic of mutual service is realised between human beings and creation. For human beings, creatures are the way by which they attain their ultimate end – God [181] – but at the same time they require human beings’ active involvement in order to bring to fulfilment the glorification they offer to God.

Humanity’s vocation is not to possess or dominate creation, as happened at the Fall, but to offer it to God.[182] This is realised in the Incarnation and the Paschal Mystery of Christ, which marks the beginning of the definitive salvation of the created world.[183] If we regard human beings as servants of other creatures, giving them a voice of praise and caring for them, we prevent their role from being interpreted as despotic and arbitrary power, and we understand it as generous service in accordance with God’s plan.

107. [Eucharistic enlightenment]. This role of human beings amongst other creatures in the fulfilment of God’s plan finds its deepest inspiration in the celebration of the Eucharist: human beings offer creation to God in Christ and, in return, implore God’s blessing in Christ upon all things. Christ is thus the axis around which the world comes to maturity. [184] Only a world in communion with God, united to God in Christ, can fulfil the purpose for which it was created and attain its fullness. This liturgical perspective endows ecology with a profound significance in terms of cultural and social, theological and religious transformation. It includes in itself a call not to urge people to respect nature solely out of fear of its destruction. Rather, it is a matter of fostering a positive and proactive attitude towards nature. The theological and cultural dimension of ecology implies that protecting nature is not at odds with its development. As stewards and servants of creation, human beings take the material world into their own hands and transform it into something greater than its natural state, perfecting it by continuing God’s creative work. Nature, entrusted by God to our care, aspires to participate, including through human action, in the chorus of divine praise as the cosmos makes its way towards its transformation and fulfilment in Christ.

108. [The Eucharist as an ecological school]. From the Eucharist springs a spirituality capable of sustaining and encouraging the ecological conversion we so urgently need to undertake as the human family (cf. LS 236). In the Eucharist, we recognise God’s gifts in nature. The intellect opens itself to the transparency of God in creation. Nature reveals its intrinsic epiphanic dimension. These are gifts we need in order to live, starting with food. But material food acquires its full meaning when it is neither isolated nor set in opposition to the food that nourishes the spirit. For this reason, a purely instrumental view of creation diminishes and impoverishes our humanity. The Eucharist is a banquet of communion, a common table to be shared. For this reason, it builds up the community. It is not possible to celebrate the Eucharist without caring for the poor. In the Eucharist, as a community of brothers and sisters, we recognise the purpose of creation and of history: to give glory to God, through the offering transfigured by his Spirit of the gifts we have received from him, uniting ourselves to the self-giving life of the Lord Jesus. For this reason, the Eucharist speaks to us of the transformation necessary to overcome sin; of the responsibility that comes with the gift of salvation, to bring the created world and humanity to their eschatological fulfilment; it teaches us to properly value all of creation;[185] it shows us our personal place within the cosmos as a whole. It teaches us that we are a community and teaches us to build community. At the same time, in it we learn to contemplate and praise God both through our work in transforming nature and through our interpersonal relationships. In the Eucharist, our relationship of dependence and gratitude towards God and, in Him, towards creation is built up and expressed.

4 Summary: The place and mission of human beings in our common home

109. To summarise this chapter, we can describe the place and mission of human beings in the common home of creation through this interweaving of different aspects, in which the Creator’s original plan unfolds.

Human beings occupy a privileged position within the whole of creation: (1) they were created on the sixth day, as the crowning glory of God’s work; (2) they are the only creatures made in the image and likeness of God; (3) and, according to Christian understanding, they are the image of Christ; (4) they are also the image of the Trinity itself; (5) they receive a special blessing to act within creation; (6) are God’s sole direct interlocutors; (7) have the task of actively and decisively collaborating with God in the perfection of creation. Taken together, these characteristics highlight the uniqueness of the human being, which is fully revealed in Christ and expressed in a dignity and a mission through which the whole of creation attains its fulfilment in Christ.

This dignity and this mission are attested to by Sacred Scripture in a clear and decisive manner: (8) human beings are entrusted with the task of dominion (rādah) over creation; (9) of subduing (kābash) the earth; (10) of cultivating (‘ābad) the Garden of Eden; (11) of keeping it (šāmar); (12) and even to complete and perfect the divine work (by giving names to living creatures). And all this must be achieved in harmony with, and in accordance with, what is most fundamental to their nature: human beings are created in the image and likeness of God, (13) as good stewards, whose care results (14) in the exercise of service in God’s name for the benefit of creation. This implies (15) that human beings do not hold the supreme position, nor are they the ones who decides what is good and what is evil (cf. Gen 3:5), thus falling into sin against the Creator and his creation. Through this sin, human beings disrupt the dynamic balance of their essential relationships with God, with neighbour and with creation, thereby harming themselves. Yet despite this, looking to Christ, human beings have been placed by God at the heart of creation to fulfil their specific and unique role in the divine plan, carrying it out as faithful stewards and servants, called to lead the redeemed and transformed creation back to God for his glory and praise.

Chapter III. Care for our Common Home

110. [Approach]. An honest acknowledgement of sin against the Creator and creation opens us up to accepting the urgent call to ecological conversion. If this sin affects our three essential relationships, then ecological conversion, to be truly integral, must logically concern these same dimensions.[186] Conversion according to the Christian faith stems from an encounter with Jesus Christ (LS 217), from whom we learn to relate to God as our one Lord (cf. Mt 4:3–4), to other human beings as our neighbours (cf. Lk 10:25–37), and to creation as a work in which we recognise the expression of a divine language (cf. Mt 6:26–30). From the perspective we have outlined, our relationship with creation is characterised by the fact that it is a gift, received from God, which has been entrusted to us so that we may care for it. Indeed, as human beings, we have been given, as stewards and servants, the task of managing creation in such a way as to manifest through it the glory of God, which will culminate in an eschatological fulfilment. Our life unfolds within a dense web of relationships with God, with other people, and with creation, where everything is interconnected. The interrelatedness and reciprocity that surround and envelop us evoke for the believer the Trinitarian imprint. All this sets a tone and a direction, whilst also calling for a specific responsibility on the part of Christians in their care for our common home. This is an integral part of their response to the vocation they have received from the Triune God.

111. When making decisions and taking action today, we must put into context the perspective outlined by the vision of creation, illumined by the faith proper to the Christian, within the wider collective commitment to address the grave global ecological crisis we are experiencing. In this chapter, we therefore seek to outline some courses of action to address the situation, looking to all possible resources and initiatives that can contribute to the care of our common home, whilst bearing in mind the specific contribution offered by the Christian vision regarding the three essential relationships that define us as human beings, together with our self-understanding and relationship with ourselves. It is within all these dimensions that the effective dynamic of the change in mindset characteristic of an authentic and integral ecological conversion can and must emerge. From this perspective, we first begin this chapter with our relationship with God, drawing inspiration from the institution of the Jubilee, which, in faith, gives a clear invitation to a constant and comprehensive change of mindset in relation to creation. Secondly, we focus on our relationship with ourselves, offering some fundamental guidelines for an ecological spirituality. Thirdly, we then focus specifically on our relationship with creation, [187] before moving on, fourthly, to our relationship with neighbour, bearing in mind that in these two areas Catholic Tradition attaches great importance to reason [188] and to respect for the natural law. [189] Finally, we introduce an interreligious perspective, in order to highlight some points of convergence regarding the care of our common home and the spirituality that can inspire it.

1 From our relationship with God: the logic of the Jubilee

112. Saint John Paul II – in the run-up to the celebration of the Great Jubilee of the Year 2000 – had already proposed an interpretation of the institution of the Jubilee, as attested in the Old Testament (cf. Lev 25:2–22), from the perspective of eco-social justice, with a theological foundation.[190] The institution of the biblical Jubilee, in fact, contains a profound teaching on the meaning of our common home and on how to inhabit it justly, in keeping with an integral ecology.[191]

113. [The theological significance of the Jubilee]. To understand the practice of the Jubilee, it is necessary to bear in mind two fundamental theological premises. First, the creation narratives, Gen 1 and Gen 2, conceive of creation as a common home for all, which is in reality a temple in which God dwells. For this reason, the whole of creation speaks of God [192] and deserves respect and care. Secondly, it is prescribed that the call to observe the Jubilee should take place on the Day of Atonement (cf. Lev 25:9). Thus, the meaning of the Jubilee is framed within the day of divine forgiveness par excellence (cf. Lev 16:29–31), which is also a day of fasting and, like the Sabbath, a day of rest. The ultimate source of the Jubilee is the recognition of God’s mercy, which must be translated in concrete terms into social justice: the restoration of the land (cf. Lev 25:10, 13), so that everyone may have their own plot of land; and ecological practice: the resting of the land (cf. Lev 25:2–6), as a recognition of God’s gift and his lordship. In this way, the Jubilee reaffirms the close interconnection between our relationship with God (mercy), our relationship with neighbour (restitution) and our relationship with the earth (rest). Furthermore, it emphasises two qualities that are proper to God: his being the Creator and his acting with mercy.

114. [The fruits of the Jubilee]. This practice embodies great wisdom. Indeed, the desire to covet the land, though forbidden in the Ten Commandments (cf. Ex 20:17; Dt 5:21), combined with the uncertainties of life, leads to situations in which the earth is no longer a common home for all, shared equitably, in clear contradiction to God’s plan. Since God is its ultimate owner (cf. Lev 25:23), the distribution of the earth as originally envisaged in accordance with the divine will must prevail and be re-established (cf. Deut 19:14; 27:17; 1 Kings 21:3; Hos 5:10) for the benefit of all (cf. LS 93–95). It follows from this that fraternity and solidarity set an unsurpassable limit to greed in the use of the land. Without effective fraternity, there is no common home.

The Jubilee implies, by its very nature, the recognition of God’s gift. Ultimately, it is his favour that makes the fields fertile. This is why he can sustain us during the seventh year (cf. Lev 25:20–22). The Jubilee is therefore founded on gratuitousness and on the humility of those who receive a gift, of those who do not succumb to the urge to hoard everything, an urge driven not only by greed but also by a lack of trust in God. Fraternity, solidarity, generosity, trust and humility: here are the deep roots anchored in our relationship with God that lead to social justice, respect for and care of creation; and which promote peaceful co-existence in our common home. The preaching of Jesus of Nazareth on the coming of the Kingdom of God is fully in keeping with this jubilee logic and, in a sense, represents its continuation and intensification. Not only does it honour the merciful Creator, but it also emphasises a preference for the little ones, the marginalised and the suffering, calling resolutely for their free and preferential inclusion as the first to be welcomed into the saving community of the Kingdom of God.

2 From our relationship with ourselves: outlines of an ecological spirituality

115. [The need for an ecological spirituality]. This Jubilee logic provides us with a guide in outlining the broad principles of an ecological spirituality. As Pope Francis far-sightedly emphasised, an appropriate spirituality is necessary to ensure that action and commitment to the care of our common home do not give rise to pride or generate anxiety (cf. GE 28). It was for this reason that, in Laudato si', he devoted the final chapter to ecological education and spirituality (cf. LS, chapter VI).

116. [The urgency and difficulties of today’s context]. The promotion of an authentic and effective ecological spirituality comes up against the dynamics imposed by the technocratic paradigm that is currently predominant in the economic sphere and in social life. There are many who suffer from stress, anxiety and frustration due to inhuman rhythms of work, which harm not only nature (energy, transport, waste, food), but also personal, family, social and religious life. It has been shown that we can come to suffer from ‘nature deficit disorder’ when we isolate ourselves and lose direct contact with creation. Often, in many of our societies, we find ourselves trapped between an underlying sense of unease, which calls for drastic changes in the way we manage our lives, and the need to adapt to the imperatives of the frenetic pace imposed by the market. Ecological spirituality charts a path out of this self-destructive spiral, which mistreats us, makes us ill and causes us to deteriorate, whilst at the same time turning us into agents of harm. A healthy spirituality invites us to live in a balanced and mindful way, both as regards the environment that sustains us and as regards others and ourselves.

117. [Some fundamental principles]. Ecological spirituality therefore involves a focus on healthy rhythms of life, where work, rest, leisure, contemplation, our relationship with nature and with other people, and silence are combined in a style inspired by millennia of monastic wisdom. The Benedictine ora et labora preserves an inspiration destined to permeate the entire Christian community today. A healthy spirituality is mindful of personal and family consumption; it strives to make it sustainable. It seeks to minimise energy consumption at home and in transport. It pursues a healthy and environmentally responsible diet. It helps people to discern what to buy, in the awareness that every act of purchasing is a moral act (cf. CV 66; LS 206). It invites people to practise thoughtful self-control over their pace of life and consumption, encouraging them to choose to forgo certain products and practices that are harmful to the environment. A responsible outlook considers society and the planet without reducing them to the individual or their immediate surroundings. For this reason, it calls for the exercise of fraternity and solidarity. By fostering a spirit of contemplation, it enables us to give thanks to God for his gifts and to join with all of creation in praising the Creator, enjoying these gifts without the need to hoard or consume compulsively (cf. LS 222).

3 From our relationship with creation: ethical principles for the care of our common home

3.1 Reverence

118. Human beings are part of the natural universe, the biosphere and the human community (cf. no. 3). Every human person has a unique and irreplaceable identity, which is constitutively expressed within a framework of radical relationality. Their existence finds its meaning within the context of the entire universe and of the particular communities that welcome and transcend them. For this reason, in the face of the grandeur of creation, which speaks to us of the Creator (cf. LS 85), bears his imprint and in turn praises him, there is a call for an attitude of wonder, reverence and respect.[193] God himself speaks to us through creation (cf. LS 84). All creation is precious in itself (cf. LS 33) and in the sight of God (cf. LS 69). The development of this sensitivity requires an education in contemplation and wonder, in the manner of Saint Francis of Assisi, who:

‘tasted God’s fontal goodness in all creatures, as in so many streams flowing from it; and, as if perceiving a heavenly concert in the harmony of the powers and movements bestowed on them by God, he gently urged them to sing the praise of the Lord, just as the prophet David had done (cf. Ps 148:1–14).’[194]

3.2 Responsible care

119. Respect demands that we take action to care for our common home, which has been given and entrusted to us by the Creator. [195] Aware of this original gift, our mission as human beings to be custodians of our common home is an expression of our being made in the image of God: it entails acting as his representatives, guiding creation towards its perfection, not towards its destruction. To care for means to actively protect, contributing to the intelligent and sustainable use of nature, so that life, in all its variety and richness, may be preserved and flourish. Sustainability, which is seriously threatened in the short, medium and long term, is an indispensable criterion that must govern our way of life and the economic model that underpins it. As we have noted, the task entrusted by the Creator to humanity is to care for and cultivate our common garden. We could perhaps go further and say that part of the mission entrusted by the Creator to his created image consists precisely in making the Earth a habitable garden for all, in which the life of all things, and human fraternity and solidarity in particular, are sustained and flourish. The principle of responsible care for creation cannot be realised without dialogue and collaboration amongst all social actors, at both national and global levels. This collaboration is the responsibility of international organisations, states, non-governmental organisations, scientists and all men and women of good will. It also concerns us who profess faith in Christ, and this implies dialogue and concerted action from all Christians in an ecumenical key.

3.3 Listening to the cry of the Earth and of the poor

120. From a biblical perspective, creation is an agent, albeit an impersonal one, which in its own way intervenes in the divine economy of salvation, conveying messages to humanity on God’s behalf (cf. e.g. Gen 4:10).[196] Today, it is urgent that we heed the heart-rending cry of the Earth (cf. LS 6; 117) in the voice of the oceans and rivers that are falling sick, of plant and animal species that are disappearing or on the verge of doing so, of forests that are being bled dry, and of glaciers and polar ice caps that are melting away. The cry of the earth is tragically linked to the cry of the poor (cf. LS 49), who are those who suffer most from the consequences of the mistreatment of the planet, together with the many who have died as a result of sin against creation. We can no longer turn a deaf ear to the cry of the Amazon (cf. QA 48, 52), together with that of the many regions of the earth where creation and the poor groan and weep, as we realise how their ancestral way of life is deteriorating at an accelerated rate and their capacity to enlighten and sustain life is in serious danger of disappearing forever. Creation, which nourishes and sustains us, laments in pain and anguish: will we heed its cry, a cry that has grown louder and calls for the liberation of creation through the action of the children of God (cf. Rom 8:21–22)?

3.4 Respect for life

121. It is within the context of creation that the mystery of life flourishes on our planet. Pope Francis’s ecological teaching emphasises that everything is interconnected. The universe is one. Life arose from elements whose existence preceded it and made it possible within the development of a dynamic and fruitful universe in constant motion. This unity applies, in a special way, to all members of the biosphere, which are all produced by a single evolutionary process. Living beings also need one another for the sustenance and flourishing of their own lives. As the only living beings endowed with moral responsibility, human beings are entrusted with a singular responsibility to safeguard the gift of life in the world.

122. To be applicable as a moral guide, this principle requires clarification and nuance. We have spoken of the threefold gradation in what we might call a natural hierarchy within created being: inanimate beings, living beings, and personal human beings (cf. no. 68). But we must also recognise a gradation amongst living beings. A bacterium, a fruit tree and a chimpanzee are all living beings, yet there are clear and significant differences between them.

123. This gradation helps us to understand how God has ordained that some living beings are to serve others, without this implying any disregard for their dignity as creatures. In nature, this exchange takes place constantly. Human beings need to feed themselves, even by sacrificing the lives of other living beings, so as to stay alive. In Genesis 1:29, the food that God provides for human beings consists of herbs and fruit trees. The same is indicated in the second account of creation, where only trees are mentioned (cf. Genesis 2:16). The vegetarian movement finds an undeniable point of support here. Later, after the Flood, in the covenant with Noah, human beings are permitted to include animals as part of their diet, provided that the sacred nature of life is recognised and that blood is not consumed (cf. Gen 9:3–4). It follows that respect for animal life must always be balanced against the actual need for nourishment, which must always be guided by moderation, proportion and necessity. It is clear, moreover, that human beings must protect themselves from living creatures that may cause disease or endanger their health and very lives. In any case, we are obliged to avoid, or at least minimise as far as possible, direct attacks on life, paying particular attention to avoiding anything that might jeopardise the continuity and quality of life on our planet.

3.5 Asceticism and fasting

124. Although fasting is practised in many religious traditions, [197] the current situation of overexploitation of our planet imposes on everyone a moral duty voluntarily to restrict consumption and the exploitation of resources, especially in wealthy countries. We have not yet realised, on a global level, that we live in a world of finite and limited resources (cf. LS 56). The current rate of energy consumption and extraction of mineral resources, for example, as well as the quantity and quality of harmful emissions, are unsustainable in the short term, even in wealthy countries, due to the adverse global effects that also rebound on them, albeit to a lesser extent at present. The consequences of the persistence of current levels of damage to our common home are unpredictable. In any case, based on the most widely accepted scientific and ecological knowledge, the effects of such conduct are indisputably irresponsible. For this reason, an ecological ethic calls for measures aimed at encouraging not only a minimum level of responsible consumption, but also its considered and concerted reduction. Asceticism and fasting express the finitude and gratuitousness of our being (before God), our solidarity with others and with future generations (our neighbour), our appreciation, respect and care for our common home (nature), and our capacity for self-control in directing our lives not according to excessive desire but according to responsibly chosen values (ourselves).

3.6 Differentiated commitment at the local level

125. Whilst we are all inhabitants of the same planet and jointly responsible for its care, it cannot be ignored that environmental degradation is not caused to the same extent by all human groups or by all countries, nor does it affect everyone to the same degree. It is therefore a matter of justice that the implementation of more responsible, demanding and respectful environmental policies should be more rigorous for those who cause the greatest harm to our common home or who have caused the most harm to it to date [198] (cf. LS 51–52, 94–95, 170). On the other hand, we must also take account of local circumstances in order to determine which policies are most urgent (cf. MH 26). Although everything is interconnected, the flourishing of life sometimes revolves more around a river basin, at other times depends more on the health of the seas and forests, or is threatened by large-scale mining. It would be unjust for wealthier countries to impose unsustainable and unsympathetic burdens on poorer countries, demanding that they preserve the Earth’s ‘lungs’ and green oases, whilst wealthy countries are unwilling to give up their high standard of living and their patterns of consumption, which are among the factors contributing to environmental degradation.

4 From our relationship with our neighbours: ethical principles for nurturing our relationships with others

4.1 The sanctity of human life

126. Human life has a sacred value (cf. EV 2) because, as a divine gift, it is called to ‘fellowship with God in knowledge and love of Him’ (EV 38). And this is why the human being is unique compared to the rest of living beings and why human life is always a good (cf. EV 34). Here lies the ultimate foundation of situated anthropocentrism (cf. no. 102). It follows with all clarity that human beings enjoy an unconditional and inalienable right to life, which must be protected and promoted by states, at all levels and by all moral agents. This applies not only to our intrinsic dignity as beings created in the image of God [199] but also to our status as moral agents and, therefore, as guardians of the moral and legal order. The very existence of human beings appears to be necessary for the establishment of a proportionate system for the care and promotion of the fabric of the biosphere. The effective protection of the unconditional right to life of the human species and of each of its individual members requires that we refuse to resort to war and seek alternative means of conflict resolution; that we avoid any form of damage to or destruction of the environment; and that we safeguard fundamental human rights, which guarantee quality of life for all. [200]

4.2 The universal destination of goods

127. The promotion of human life is not limited to the safeguarding of biological life. In order for every person to achieve personal fulfilment and lead a life in accordance with the demands of human dignity, it is necessary to guarantee every person, every family and every people access to and participation in those goods which ensure and promote the attainment of this end. For this reason, it is necessary to reaffirm a principle that is firmly rooted in the Tradition and teaching of the Church: the universal destination of goods. It states ‘an affirmation both of God's full and perennial lordship over every reality and of the requirement that the goods of creation remain ever destined to the development of the whole person and of all humanity’. [201] Private property is not an absolute right according to Christian Tradition. From an ecological perspective, the principle must be broadened to include the preservation of planet Earth for future generations and for the flourishing of life, not only human life. This principle is a necessary corollary of the ethical and social requirements of the integral ecology proposed by Pope Francis. The uniqueness of human life and the right that is consequent on it integrate, alongside the duty to care for our common home, the duty to promote human life as found in the principles of the Church’s social doctrine, such as the universal destination of goods, justice, peace, fraternity, mercy, solidarity and the preferential option for the poor.

4.3 Fraternity and neighbourliness

128. From the perspective of the Christian faith, all human beings, created by God and redeemed in Christ, are brothers and sisters as sons and daughters of the same Father. We all, moreover, inhabit the same home. For this reason, we must treat one another as good neighbours, who not only refrain from harming one another but also help one another and together care for the home that shelters them (cf. MH 74). Only in this way can the well-being of all be pursued. The solidarity that stems from our belonging to the same species also makes us brothers and sisters by virtue of our common origin and destiny. Failing to regard and treat one another as brothers and sisters is a serious symptom of a theological and anthropological blindness that breeds violence, injustice, calamities and suffering, and which has its roots in a false, selfish, atrocious and greedy individualism.

4.4 Mercy and compassion

129. The greatness of human beings lies in their capacity to love and to feel compassion. It is in this way that they come closest to God (cf. Lk 6:36). Without love, human life not only turns away from God, who is love [202] (1 Jn 4:8), but degenerates to the point of sinking to subhuman levels. For this reason, when we fail to show love and compassion for our neighbour, especially for those most in need of our help, we betray our dignity and our vocation. Only by bringing the best of ourselves, our empathy and mercy, to bear in an intelligent and coordinated manner will we be able to reverse the ecological crisis.

4.5 Preferential option for the poor

130. Given that ‘the preferential option for the poor is implicit in the Christological faith in that God who became poor for us, so as to enrich us with his poverty (cf. 2 Cor 8:9)’,[203] the Christian faith, looking to the Lord Jesus, professes a preference for the poor in all its manifestations.[204] Therefore, in our commitment to the environment, priority must be given to those actions which, first and foremost, benefit the poorest, those who are most severely affected by the current environmental degradation and who have the fewest resources to mitigate its harmful effects.

4.6 A Retrospective View

131. All the ethical principles summarised thus far are rooted in, and draw their inspiration and strength from, our relationship with God the Creator and Redeemer, as revealed by Jesus Christ. At the same time, however, they can serve as a solid starting point for dialogue and collaboration with different religious traditions and with those who hold other cultural convictions.

132. [Ethical discernment]. In order to put these principles into practice appropriately and effectively, the mature exercise of the art of ethical discernment is necessary.[205] Indeed, as Saint Thomas Aquinas warned: ‘There is much uncertainty in things that ought to be done; because actions are concerned with contingent singulars, which, by reason of their vicissitude, are uncertain.’[206] This discernment requires a rightly formed conscience,[207] which integrates the light of revelation with the use of right reason[208] and takes into account the fundamental element of the assistance of the Holy Spirit.[209] In this endeavour, we are called, both as individuals and as communities, to manage a hierarchy of principles and criteria, which must be applied with evangelical wisdom to the concrete situation, assessing the interaction between individuals, groups and communities, available resources, goods to be protected and evils to be avoided, in the pursuit of the best possible outcome, whilst taking into account the complexity of the situation (cf. Rom 12:2). The first and supreme ethical principle remains, without doubt, the inviolable dignity of the human person[210] (cf. LS 43) and the unconditional right to human life. Secondly, the Christian faith sets forth as a guiding criterion the preferential option for the poorest, the most vulnerable and the most disadvantaged. Thirdly, priority must be given to the pursuit of the more universal good over the particular good. Fourthly, attention must be paid to the sustainability of life on the planet, especially in the medium and long term.

5 The contribution of religions to the care of our common home

133. The urgent and pressing nature of the ecological crisis demands that all the forces involved – science, politics, the economy, the law, organisations of civil society, and public administration institutions at all levels, national, regional and local – join forces and collaborate actively with the aim of making our common home habitable for all. In this context, the driving role of religions in promoting the common good (cf. MH 27) stands out, as does their capacity to inspire altruism and the conservation of and respect for the natural environment, and to point to the source of a spirituality that permeates and guides everyday behaviour.

The overview of the various religions that we offer highlights only some of the most salient features that shed light on their contribution to a shared and generative ecological spirituality. We regard them with respect and appreciation, in the conviction that they have developed forms of wisdom over the centuries. In them, the help of the Holy Spirit and the seeds of the Word are not lacking.[211] Certainly, it is only in Christianity that we find distinctive elements such as the Trinitarian imprint on creation, creation through the Logos, the central significance of the Incarnation and the Resurrection of Christ, the intimate life-giving and deifying action of the Holy Spirit, the unique value of the Eucharist, the eschatological fulfilment in and through Christ, and the role of the Church as the universal sacrament of salvation, to name but a few key elements. Therefore, we do not intend to seek a lowest common denominator amongst religions, but to offer elements for building bridges from the Christian faith, in order to promote collaboration in sharing certain fundamental convictions. Indeed, despite the great diversity of presuppositions and approaches, we share with other great spiritual and religious traditions the legacy of love and care for our common home.

134. [Judaism]. Drawing on the worldview of Sacred Scripture, various strands of Judaism propose a well-defined and comprehensive ethic of responsibility towards the natural world that God has created and entrusted to human beings as its stewards. This begins with the prohibition against any form of destruction of or damage to the planet, as the Midrash warns: ‘Do not destroy my world, for if you do, there will be no one after you to repair it.’[212]

To forget divine authority and deviate from the order established by God is to commit an injustice against God and against all other creatures. This can be remedied only by human beings themselves, which is why ‘repair of the world’ (Tikkun olam) is one of the main concerns of modern Jewish groups, who link social justice and the environmental crisis. [213] The Jewish response to the ecological crisis therefore has a very deep foundation, being intimately linked to the ancient tradition of faith which affirms humanity’s responsible stewardship of the earth that God has entrusted to them. As long as Israel obeys God’s will, keeps away from idols and practises justice, the land will remain fruitful and fertile, as Scripture promises; otherwise, it will lose its fertility and the people themselves will be destroyed (cf. Deut 6:10–15). There is, in fact, an invisible and fundamental covenant binding God, who created the world, to all creatures, and specifically to human beings as his stewards and administrators of creation (cf. Gen 2:15).

135. [Islam]. The intrinsic value of creation in Islam is based on the fact that it is altogether a sign (āya) of God. The Qur’an constantly calls upon human beings to contemplate creation in order to recognise God’s lordship. Furthermore, creation is not merely an inert or silent entity, for ‘there is nothing that does not glorify Him’. [214] Although, according to Islam, sovereignty (mulk) over creation belongs exclusively to God, He bestows it on human beings as a trust (amāna). The human being thus receives the mission to safeguard creation as a faithful steward, without being able to dispose of it in a despotic manner. Despite the humility of their origin from clay, human beings are distinguished from the rest of creation in that they are constituted as representatives or vicegerents (khalīfa) of God through the receiving of the names. This understanding of human beings’ role in their relationship with other created beings is very close to the concept of the image of God as attested in biblical accounts (cf. chapter 2), and so paves the way for collaboration between Christians and Muslims in the field of ecology. It is true that, according to Islam, God has subjected creation to the service of humankind (taskhīr), but the ultimate horizon remains radically theocentric: the praise of God. Furthermore, beings depend on one another for their sustenance and form communities amongst themselves. [215] Finally, it is necessary to mention the ecological implications of Islam’s fundamental belief in the unity of God (tawḥīd). God is one, and all things in the world form part of His creation. Consequently, there is a fundamental unity of creation, founded on the radical unity of the divine. Here lies a further point of possible convergence between Islam, Judaism and Christianity. [216]

136. [Hinduism]. Ancient Hindu wisdom interprets the genesis of the world as a sacrificial descent of the primordial One. [217] This is why the world, in turn, is destined to undertake a sacrificial ascent towards its Principle within a dynamic of mutual relationality. The primordial One endows human beings with the capacity to participate in the primordial consciousness, through which it is possible to live in harmony with the supreme dynamism that sustains the cosmos. [218] Owing to this emphasis on the fundamental unity of consciousness, the Hindu view of the world, of the Supreme Being and of humanity is cosmotheandric, as it manifests both the intimate unity and intertwined significance between the Supreme Being, the world and humanity. The finite nature of the world and of humanity attains its fullness in union with the infinite One by participating in Its primordial consciousness. This consciousness is fostered by a non-dualistic view of reality, through which one comes to perceive that ‘the whole world is one family’ (vasudhaiva kutumbakam). [219] This consciousness instils in human beings a profound ethical bond with all other beings, governed by the virtues of compassion, kindness and service. This is the bedrock of Hindu Dharma, the fundamental commitment to the world, the Supreme Being and humanity. This ethic of compassion, kindness and service extends to the geological, biological and spiritual spheres of the world and calls for the protection of environmental conditions for the common good.

137. [Buddhism]. The Buddhist tradition advocates a profound respect for all living beings, calling on us to approach them with compassion and loving-kindness. It is said that, upon attaining enlightenment, the Buddha perceived the radical interconnection of all natural phenomena, an experience that in some way brings him close to the perception of cosmic brotherhood and sisterhood experienced by Saint Francis of Assisi, as recalled and explored in Laudato si'. In the vision inspired by the Buddha, our lives are not the result of a single, isolated cause: on the contrary, they arise from the convergence of multiple causes and conditions. We human beings must learn to respect every form of life because all living beings are interconnected and form a harmonious unity. It follows, therefore, that a righteous life requires respect for and loving care of all living beings. [220] From a Buddhist perspective, the concept of Dharma goes hand in hand with the concept of ahimsa,[221] which expresses an ethical principle shared by Buddhism, Hinduism and Jainism, and which requires us to refrain from causing harm to other living beings. Today, many people committed to promoting an ecological culture draw inspiration from the Buddhist principles of interconnection, compassion and ahimsa.

138. [Confucianism]. According to Confucianism, in the religious and cultural tradition of China, although life is organised and structured across different levels, the entire cosmos participates in it in unity and harmony. The supreme cosmic virtue that governs heaven and earth is that of transmitting and cherishing life. Life and the practice of virtue are therefore closely interlinked, such that Confucian ethics is essentially an ethics of virtue. Ren (benevolence, humanity) is the most fundamental and greatest of all virtues, for where there is benevolence there is life, and human beings are truly human. All things in the universe cherish their own existence and seek to preserve it and make it flourish, trusting that they are naturally protected from any form of harm. The fullness of life is manifested in human beings, for they are its most spiritual expression. The human heart is the heart of heaven and earth, for it shares the same Tao (principle), and for this reason it must be a benevolent heart. Human beings and all things in heaven and earth are deeply interconnected, forming a ‘benevolence of the whole’. All human beings, in developing their own lives, must simultaneously develop the lives of the countless things in the universe. [222] The key to Confucianism’s ecological vision is the concept of Ren (benevolence) as the most fundamental and important virtue, which signifies the capacity to be one with all living things, feeling the pain of other persons and of all things as one’s own.

139. [African religions]. The perception of the unity of creation is also very much present in the religious traditions of sub-Saharan Africa. [223] The worldview they express is often structured around a holistic vision that combines theological, cosmic and anthropological dimensions. The sphere of divine life, that of the physical universe and that of the human world exist in a state of mutual interpenetration. In various traditions there is envisaged the work of a deity to whom the origin of the world is attributed; the world is habitable because each of its parts is governed by different manifestations of the transcendent. The cosmic elements (the sky, the earth, the waters, the forests or fire) are potentially hierophanic realities, [224] being vitally connected at a deep level to the Divine. [225] They demand sacred respect and reverential treatment. The human world, too, bears within it a divine dimension, which is expressed in the life that animates it, in the force that sustains it, and in the interdependence that binds it to all beings and forces in the universe. A sacred energy unites human beings with animals, plants, inanimate realities and the divine world. Human beings are called upon to relate to other beings with reverence and communion, for their task is to establish communion between the earthly and divine worlds. [226]

140. [Indigenous religions of the Americas and the Pacific]. The worldview of indigenous peoples, that is, the cosmic religion of tribal societies, [227] is passed down through narratives in which all beings in the world tell their own stories and, in so doing, reveal the deepest meanings of the world and of the human beings interwoven within it. In this way, the world is described and, at the same time, guidance is given on how to live within it. Within this worldview, indigenous communities express their experience of being embedded in a web of respectful relationships with their lands and with the animals and plants that inhabit them, which makes it possible for all to be sustained. This ancestral form of ecological consciousness persists to this day in the lives and traditions of the indigenous peoples of the Americas, and is also found in Oceania. [228]

141. [Convergences]. Without wishing to force interpretations and whilst taking differences into account, since not all the religions presented here explicitly recognise the existence of a personal Creator, certain recurring themes resonate in the testimonies summarised here, albeit formulated in different ways. Not all of these elements, however, are present in each of the religions under consideration. Among the most common elements, the following may be highlighted: (1) the unity and interconnectedness of all that exists, regarded as a value in itself and as an ethical imperative; (2) the recognition of the duty to respect and show compassion towards all beings by virtue of a certain intrinsic sacredness of nature, interpreted from very different perspectives; (3) the particular responsibility of human beings to care for all that exists.

Religious traditions that acknowledge the existence of a creative principle, each in its own way, emphasise the fundamental importance of relationship with God and with creation. Clearly, compassion and care for creation – or for the existing world, in cases where there is no concept of creation – cannot be separated from merciful concern for one’s neighbour. With varying nuances and approaches, the various traditions that embrace the idea of a transcendent Creator emphasise the decisive role of these three fundamental relationships for the full realisation of human life and for the good of the planet. Many of these aspects, at their fundamental ethical core, are compatible with the Christian vision. Therefore, from the perspective of the Christian faith, the doors are open to interreligious collaboration in the shared task of respectful care for all creation in the service of the flourishing of life and of communion with the Transcendent, which is the origin and foundation of all life.

Conclusion and Prospects:
the significance of our common home in God’s plan

142. [A retrospective view]. A faith-based perspective on the ecological crisis in which we live helps us to understand decisively both the theological roots that lie at its origin and the extraordinary theological potential that constitutes the resource for addressing it and emerging from it in a positive way. The primordial experience of Saint John of the Cross, from which we began, and that of so many Christians, as well as members of other religions, speaks of a relationship with nature as something precious, in which one discovers, with wonder, respect and gratitude, the Creator’s imprint as a reflection of his plan of love in our common home. From this experience springs and is nourished the healthy and balanced exercise of the three essential relationships that define us as human beings: with the Creator, with our neighbour, and with creation. In particular, we have endeavoured to show that this fundamental experience is an integral part of the heritage of the Christian faith. The Triune God whom Christ has revealed has imprinted his mark on creation, so that faith, both lived and reflected upon, recognises in it his presence and the rich web of relationships that arises from Trinitarian action in the world. God the Creator places human beings, not as isolated individuals, but as a community (a couple), in the original garden of creation as his representatives and direct interlocutors (in his image and likeness), entrusting them with the task of caring for creation and dwelling in it in accordance with the Creator’s will (as stewards), so that ultimately, by their perfecting and completing it, creation may reflect his divine glory (servants of creation). We are called to carry out this task with boldness, open-mindedness, intelligence and clarity. This requires the application of the most proven scientific knowledge and technical skills, but also the integration of ethical and spiritual principles that stem from our relationship with God, with others, with creation and with ourselves.

143. [Freedom and responsibility]. The various views on what the cosmos is, on its origin, its meaning and destiny, and on the place assigned within it to human beings, have specific implications when it comes to understanding our responsibility in the ecological crisis and our capacity to safeguard and promote life on planet Earth. If the most decisive forces, whether through determinism or chance, were solely those of nature itself, human freedom would in reality have very little scope for action. This would be even less so if, ultimately, the existence of freedom and responsibility were denied, not only before God but also before others who inhabit the planet now or will inhabit it in the future. But in the Christian view, freedom is an essential dimension of human dignity and an indispensable condition for the exercise of moral responsibility (cf. Gal 5:1, 13). Without this freedom, neither the original task of caring for creation, nor the sin at our origins, nor the sin against creation and the Creator, nor the possibility of an ecological conversion leading us to put an integral ecology into practice would make sense.

144. [Our relationship with creation is illumined by our relationship with the Creator]. When it comes to establishing the moral obligation not to plunder our planet, three main types of argument are put forward: responsibility towards God (the worship of a Creator God), responsibility towards future generations (intergenerational solidarity), and the respect due to planet Earth (gratitude and acceptance of the gift received). In this third option, pantheistic considerations often creep in, consciously or unconsciously, which disrupt the harmony of the entire worldview based on faith. The Christian perspective recognises the rationality inherent in faith in a Creator God, appeals to intergenerational solidarity (cf. GS 70; PP 16–17; CV 48; MH 76), and holds that creation is endowed with its own goodness, but only insofar as it is the work of the Creator. In this light, Christian faith contemplates a certain ‘sacramentality’ of creation, recognising in it the Trinitarian imprint of the Creator. Thus, creation, in its constitutive reference to the Triune Creator, is drawn into humanity’s dialogue with God. Viewed in this light, creation invites us to praise God and to come to know him through it, to receive it as a divine gift, and to work in the garden in which we are placed in a spirit of service and self-giving, so that it may flourish to God’s glory. In short, from a Christian point of view, the ecological question ultimately becomes a theological one: how do we relate to creation, our common home, the work of the Triune Creator? Our relationship with creation constitutes a dimension of our relationship with Him (cf. GS 13). As Saint Thomas Aquinas stated: ‘Errors concerning creatures sometimes lead one away from the truth of the faith to the extent that they are inconsistent with true knowledge of God’. [229]

145. [The ecological turn]. It is common to describe a shift in the prevailing paradigm of thought using the term ‘turn’. There has been talk of phenomenological, anthropological, historical-social, linguistic and contextual turns. Today it is clear that we urgently need an ecological turn to reorient us, to help us understand more deeply our place within and our dependence on the environment, for ‘wherever human life is involved, nature and culture are quite intimately connected one with the other.’ (GS 53). By ‘ecological turn’, we therefore mean the shared realisation that all of reality is interconnected, comes from God as a gift, and displays his Trinitarian imprint. [230]

146. This awareness entails recognising divine sovereignty, the goodness of creation and the unique place of human beings in the cosmos as interlocutors and representatives of God himself. It also entails recognising the structures of sin against creation and the Creator, and the need for a conversion towards an integral ecology. An egocentric and solipsistic ‘I’ relates to the other either with the impulse to possess (greed) or to control as if the other were a threat (aggression). These two attitudes – greed (cf. Gen 3:6) and violence (cf. Gen 4:8) – are, on closer inspection, defining features of the technocratic paradigm and of predatory anthropocentrism, and are symptoms of a fallen humanity that closes itself off to the action of divine grace. By succumbing to them, we deny and distort the truth of reality as it comes from God and is destined for Him (cf. 1 Cor 8:6). Pope Francis, in the homily at the start of his pontificate in which he urged care for creation, for our brothers and sisters, and for ourselves, exhorted:

‘But to be “protectors”, we also have to keep watch over ourselves! Let us not forget that hatred, envy and pride defile our lives! Being protectors, then, also means keeping watch over our emotions, over our hearts, because they are the seat of good and evil intentions: intentions that build up and tear down! We must not be afraid of goodness or even tenderness!’ [231]

147. [Spiritual turn]. The ecological turn is not merely a paradigm shift concerning the mind, but entails a profound spiritual conversion, modelled on that attested by Saint Francis of Assisi. His luminous and moving relationship with creation springs from his following of Christ, poor and crucified, in whom he recognises the face of the Son for whom all things were created and reconciled. It is his experience of living in conformity with Christ that impels him to praise the Creator and Father, to care for creation, to sing of the beauty of creation according to God’s plan, and to care for his brothers and sisters.[232] His marriage to ‘Lady Poverty’ frees him from any claim to despotic dominion and opens his gaze to the world and to history in a spirit of peace, to the point of even welcoming death as a ‘sister’, a sign that creation is not destined for destruction, but for transfiguration in Christ.

148. [Christian hope]. As we contemplate creation through the lens of Christian revelation, we cannot fail to recognise that the environmental crisis we are experiencing puts our hope to a severe test. Yet it does not diminish its strength. The Gospel remains the ‘good news’ even today: God wishes to redeem human creatures in the totality of their souls and bodies and, together with humanity, to renew the whole of creation (cf. Rom 8:22). And he has already done so ‘once and for all’ (Heb 9:12) in Christ, who died and rose again, and ascended to the right hand of the Father.

This hope is not a superficial optimism. It is the sure conviction that all things are in the hands of God. Hope enables divine grace to open our eyes so that we may aspire ‘to the Kingdom of Heaven and eternal life as our happiness, placing our trust in Christ’s promises and relying not on our own strength, but on the help of the grace of the Holy Spirit’. [233] It is hope that does not exempt us from personal responsibility, but rather calls us to and strengthens it, including in the context of our commitment to the environment (cf. LS 61, 180, 244). As a theological virtue – a gift from God – it enables us to act with sure confidence that the Creator, who made all things through Christ and ‘willed to reconcile all things through him, whether on earth or in heaven’ (Col 1:20; cf. 1:15–20), will bring his plan of liberation and salvation to fulfilment. Looking forward to the fulfilment of all things, we therefore await the coming of ‘a new heaven and a new earth’, for He who sits on the throne declares: ‘Behold, I am making all things new’ (Rev 21:1, 5; cf. Is 65:17). In this new creation, alongside the transformation of all suffering and pain, all the acts of love and generosity we have shown towards creation, towards our neighbour and towards God will be included. Thus, ‘we join together to care for this Common Home entrusted to us, knowing that all the good found within it will be welcomed into the heavenly feast’ (LS 244).

 


[1] John of the Cross, Cantico Spirituale, Paoline, Cinisello Balsamo (Milan) 1991, Stanza 5, p. 162.

[2] Cf. K. Armstrong, Naturaleza sagrada. Cómo podemos recuperar nuestro vínculo con el mundo natural, Barcelona 2022.

[3] ‘By the “thousand graces” he was pouring forth, he alludes to the multitude of innumerable creatures; … for creatures are like a footprint of God’s passing by, in which one glimpses his greatness, his power, his wisdom and the other divine attributes’: John of the Cross, Spiritual Canticle, Stanza 5, Explanation 2–3, p. 614.

[4] Cf. ibid., Explanation 3–4.

[5] Cf. J. Tatay, Ecología integral. La recepción católica del reto de la sostenibilidad, Madrid 2018.

[6] Cf. in particular: Francis, Encyclical Letter Laudato si' (24 May 2015); Id., Apostolic Exhortation Laudate Deum (4 October 2023); Ecumenical Patriarch Bartholomew, On Earth as in Heaven. Ecological Vision and Initiatives of Ecumenical Patriarch Bartholomew, edited by J. Chryssavgis, New York 2012; Id., Global Initiatives of Ecumenical Patriarch Bartholomew. Peace, Reconciliation, and Care for Creation, edited by J. Chryssavgis, Notre Dame (Ind.) 2023; O. Llewellyn, F. Khalid et al., Al-Mizan: Covenant for the Earth. The Islamic Foundation for Ecology and Environmental Sciences, Birmingham 2024.

[7] Cf. Francis, Encyclical Letter Laudato si' (24 May 2015), nos. 16, 91, 117, 138, 240; Id., Post-Synodal Apostolic Exhortation Querida Amazonia (2 February 2020), nos. 41–42.

[8] Id., Address to members of the International Theological Commission, 24 November 2022.

[9] John Paul II, Catechesis (17 January 2001), no. 4; Francis, Encyclical Letter Laudato si' (24 May 2015), no. 5, and in particular nos. 216–221.

[10] Cf., for example: Programma delle Nazioni Unite per l’ambiente, Prospettive ambientali mondiali – GEO 6. Sintesi per i responsabili politici, Nairobi 2019. Available in different languages at https://www.greenpolicyplatform.org/research/global-environment-outlook-6-summary-policymakers (consultato il 16 aprile 2025); Prospettive mondiali sulla diversità biologica 5, Sintesi per i responsabili politici, Montreal 2020. Available in different languages at https://www.cbd.int/gbo5 (consultato il 16 aprile 2025); Settimo rapporto delle Nazioni Unite sull’ambiente: https://www.unep.org/geo/global-environment-outlook-7 (consultato il 16 aprile 2025).

[11] L. White, ‘The Historical Roots of our Ecological Crisis’: Science 155/3767 (1967), 1203–1207, esp. 1206.

[12] A Message from the Catholic Episcopal Conferences and Councils of Africa, Asia, Latin America and the Caribbean on the occasion of COP30, A Call for Climate Justice and Our Common Home: Ecological Conversion, Transformation and Resistance to False Solutions (12 June 2025).

[13] Cf. Francis, Apostolic Exhortation Laudate Deum (4 October 2023), no. 3. Confirmed by the United Nations Environment Programme, Global Environment Outlook 7 Executive Summary: A future we choose – Why investing in Earth now can lead to a trillion-dollar benefit for all, Nairobi 2025 (https://www.unep.org/resources/global-environment-outlook-7 accessed 15 December 2025).

[14] Cf. Leo XIV, Discorso alla Commissione Teologica Internazionale (26 November 2025).

[15] Cf. id., Encyclical Letter Magnifica humanitas (15 May 2026), no. 84.

[16] Ibid., no. 20.

[17] Leo XIII, Encyclical Letter Divinum illud munus (9 May 1897), ASS 29 (1896/1897) 647 (DH 3326).

[18] Council of Florence, Decree for the Jacobites (4 February 1442): DH 1331. Cf. Thomas Aquinas, S.Th. I, q. 45, a. 6.

[19] Basil the Great, De Spir. XVI, 38: SCh 17 bis, 378. Shortly before this, he states, with regard to the angels, that one should think of ‘the Father as the original cause, the Son as the creative cause and the Spirit as the perfecting cause’ (SCh 17 bis, 376–8).

[20] Catechism of the Catholic Church,n. 258.

[21] Epistle of Barnabas 5:5; 6:12: FuP 3, 168; 176.

[22] Tertullian, Adv. Prax. 12.3: CCSL 2, 1173. On the Trinitarian character of creation, cf. Athanasius, Ad Serapionem I, 23–24; 28: PG 26, 585–588; 596; Augustine, In Io. 20:9: CCSL 36, 208. John Paul II, Encyclical Letter Dominum et vivificantem (18 May 1986), no. 12.

[23] Cf. Justin, Dial. 62: Bobichon I, 348–352; Theophilus of Antioch, Ad Autol. II, 18: FuP 16, 142; Irenaeus of Lyons, Adv. haer. IV, praef., 4: SCh 100/2, 391; IV, 20,1 (627); V, 1,3: SCh 153,29; Tertullian, Res. 5,6; 6,4: CCSL 2, 927; 928; Adv. Prax. 12,1–2: CCSL 2, 1172–1173.

[24] Cf. Clement of Rome, 1 Clem 33.4: FuP 4, 112; Theophilus of Antioch, Ad. Aut. II, 18: FuP 16, 142; Irenaeus of Lyons, Adv. haer. IV, praef., 4: SCh 100/2, 391; IV, 20,1: SCh 100/2, 627; V, 5,1: SCh 153, 63; 6,1 (73); 28,4 (361). There are precedents in Philo of Alexandria, Virt. 203: Œuvres 26, Paris 1962, 146 and Opif. 148: Œuvres 1, Paris 1961, 240.

[25] Gregory of Nazianzus, Oratio 34.8: SCh 318, 212.

[26] Cf. Second Vatican Council, Dogmatic Constitution Dei Verbum (18 November 1965), no. 3; Athanasius, Contra gentes 40: PG 25, 80B–82B; Hilary of Poitiers,Trin. V,5: CCSL 62 A, 154–156.

[27] Cf. Origen, Homiliae ad Genesim 1,1: SCh 7 bis, 25; Augustine, Confessions XIII,5,6; XI,5,7: CCSL 27, 244; 198; City of God XI,33: CCSL 48, 354.

[28] Cf. Ad Diognetum 7.2: Funk 2  1906, 138; Justin, First Apology 59.5: SCh 507, 286.

[29] Cf. Theophilus of Antioch, Ad Autol. II,10: FuP 16, 116–120; Athenagoras, Leg. 10: SCh 379, 100–2; Justin, Dial. 61–62: Bobichon I, 346–352; Tertullian, Adv. Herm. 18.1–4: SCh 439, 124–128; Adv. Prax. 6.1–7.5: CCSL 2, 1164–1166.

[30] Cf. Irenaeus of Lyons, Adv. haer. V, 18,3: SCh 153, 247; Dem. 34: FuP 2, 128–131; Thomas Aquinas, S.Th. I, q. 34, a. 1 ad 3; III, q. 3, a. 8.

[31] Cf. Maximus the Confessor, Amb. Io., 33: PG 91, 1285 CD; Thal. 35: PG 90, 377 C; SCh 529, 374–376.

[32] International Theological Commission, Communion and Stewardship. Human Persons Created in the Image of God (2004), no. 75.

[33] Cf. Augustine, Trin. XV,19,37: CCSL 50A, 513.

[34] Cf. Gregory of Nazianzus, Oratio 39,12: SCh 358, 172.

[35] Cf. Theophilus of Antioch, Ad Autol. II,13,3–4: FuP 16, 128; Tertullian, Adv. Herm. 32,2: SCh 439, 164–166; Adv. Marc. IV,26,4: CCSL 1, 615. Cf. also Bonaventure, Brev. II, 5,4.

[36] ‘Appropriation’ means that we are speaking of something that is fully common to the three divine Persons, but is attributed to one of them because some likeness to that Person is perceived.

[37] Cf. Augustine, Gen. litt. I, 6,12: CSEL 28/1, 10.

[38] Cf. Basil the Great, De Spir. XVI, 37–38: SCh 17 bis, 374–378.

[39] Cf. Irenaeus of Lyons, Adv. haer. IV, 20,1–2.4: SCh 100/2, 625–31.

[40] Cf. Basil the Great, De Spir. XVIII,46: SCh 17 bis, 410. On the human person: Irenaeus of Lyons, Adv. haer. V, 9,1: SCh 153, 107–9.

[41] Roman Missal, Eucharistic Prayer III.

[42] Cf. Irenaeus of Lyons, Adv. haer. V, 6,1: SCh 153, 77.

[43] Liturgy of the Hours, hymn for Vespers following the Ascension of the Lord; see also the Veni Sancte Spiritus sequence for Pentecost Sunday, at the Mass of the Day.

[44] Italics in the original. See, in this regard, Bonaventure, Myst. Trinitatis, I, 2, conclusion, which we reproduce below.

[45] Ibid.; cited in LS 239. Cf. Brev. II, 12,1.

[46] Cf. Leo XIV, Discorso alla Commissione Teologica Internazionale (26 November 2025).

[47] Cf. Augustine, Trin. VI, 10: CCSL 50, 241–242; Civ. Dei XI, 28: CCSL 48, 348.

[48] Id., VI, 10, 12: CCSL 50, 242; Italian translation by G. Beschin, in Opere di Sant'Agostino – Opere filosofiche-dommatiche, Vol. IV, Latin text from the Maurist edition collated with the edition of the Corpus Christianorum, Città Nuova Ed., Rome 1973; De Civitate Dei XI, 25: CCSL 48, 344.

[49] Cf. Irenaeus of Lyons, Dem. 11: FuP 2, 79–80; Adv. haer. V, 6,1: SCh 153, 77.

[50] Cf. Tertullian, De carnis resurrectione 9.1: CCSL 2, 932; however, in Adversus Marcionem II, 5.6: SCh 368, 46, he tends to restrict the divine image to the soul alone.

[51] Cf. Augustine, Civ. Dei XI,24: CCSL 48, 409.

[52] Cf. id., Trin. XV,7,11: CCSL 50A, 457; ibid. 7,12: CCSL 50A, 366.

[53] Cf. id., Gen. litt. III, 20: CSEL 28/1, 86–87.

[54] Cf. id., Trin. IX,3,3: CCSL 50, 295ff.

[55] Ibid.,X,11,17: CCSL 50, 329.

[56] Ibid., IX,5,8: CCSL 50, 300. Bonaventure takes up these two triads: Myst. Trin. q.1, a.2, resp.

[57] Cf. Augustine, Trin. IX,5,8: CCSL 50, 300.

[58] Cf. Hildegard of Bingen, Liber Divinorum Operum, I. 2: CCCM 92, 47–50.

[59] Cf. id., Scivias II. 1: CCCM 43, 7–92; Liber Divinorum Operum I. 1: CCCM 92, 46–47.

[60] P. Dronke, Women Writers of the Middle Ages: A Critical Study of Texts from Perpetua (†203) to Marguerite Porete (†1310), Cambridge 1984, 175.

[61] Theodericus monachus Ecternacensis, Vita Sanctae Hildegardis Virginis, II, 16: CCCM 126, 44.

[62] Hildegard of Bingen, Explanatio Symboli S. Athanasii: PL 197, 1075–1076.

[63] Id., Liber Divinorum Operum I. 2: CCCM 92, 47–50.

[64] Itin. VI, 2.

[65] I Sent. dist. 3 q.2.

[66] Brev. II, 1.

[67] Itin. I, 10.

[68] Brev. II, 2, 2.

[69] Cf. also in this sense: Hex. I, 17.

[70] I Sent. d. 16, a.1, q.1, f. 4.

[71] I Sent. d. 6, a.1, q.3, ad 4.

[72] Itin. I, 7; I, 15.

[73] Itin. IV, 1.

[74] Cf. Itin. II, 13.

[75] De myst. Trin.q.1, a.2.

[76] De myst. Trin.q.1, a.2.

[77] Cf. Itin. II, 13; IV and passim.

[78] II Sent. dist. 16, q. 1, a. 1.

[79] S.Th. I, q. 2, proem.

[80] S.Th. I, q. 3, a. 3–5.

[81] S.Th. I, q. 44, a. 1.

[82] S.Th. I, q. 45, a. 6.

[83] S.Th. I, q. 45, a. 6, corp.

[84] S.Th. I, q. 45, a. 6, corp.

[85] Sent. I, d. 14, q. 1, a. 1. Cf. S.Th. I, q. 34, a. 3; q. 37, a. 2, ad 3; Sent. I, d. 32, q. 1, a. 3.

[86] S.Th. I, q. 32, a. 1 ad 3.

[87] Cf. De potentia, q. 9, a. 5 ad 23. Cf. Basil the Great, De Spir. XVIII, 46: SCh 17 bis, 408–9.

[88] S.Th. I, q. 39, a. 8 ad 4. Cf. In Ioann. 1,3 (n. 76).

[89] S.Th. I, q. q. 34, a. 3 ad 1.

[90] Cf. S.Th. I, q. 37.

[91] Cf. S.Th. I, q. 38.

[92] Cf. S.Th. I, q. 13, a. 7, corp.; q. 37, a. 2.

[93] Cf. Fourth Lateran Council (11–30 November 1215), chap. 2: DH 806.

[94] Sup. Io. c. XVII, l. 3.

[95] Francis, Apostolic Constitution Veritatis gaudium (8 December 2017), no. 4a, quoting from Laudato si', no. 240.

[96] Cf. Augustine, Contra Serm. Arian. I,8: PL 42, 688 C; Theodoret of Cyrus, Eranistes 100: PG 83, 137 C; Ettinger, 133; Leo the Great, Ep. ‘Licet per nostros’ to Julian of Cos 3: DH 298.

[97] Council of Trent, Decree on the Sacraments (3 March 1547), can. 2: DH 1602; indirectly, Second Vatican Ecumenical Council, Dogmatic Constitution Lumen Gentium (21 November 1964), no. 35.

[98] Cf. International Theological Commission, The Reciporcity between Faith and Sacraments in the Sacramental Economy (2020), nos. 16–32; J. Ratzinger, ‘Die Sakramentale Begründung christlicher Existenz’, in Theologie der Liturgie. Gesammelte Schriften 11, Freiburg 2008, 197–214.

[99] Metropolitan J. Zizioulas, Il creato come eucaristia. Approccio teologico al problema dell'ecologia,Edizioni Qiqajon – Comunità di Bose, Magnano (Bi) 1994; id., Priests of Creation. John Zizioulas on Discerning an Ecological Ethos, edited by J. Chryssavgis and N. Asproulis, London 2021.

[100] Cf. John Paul II, Apostolic Letter Orientale lumen (2 May 1995), no. 11; Ecumenical Patriarch Bartholomew, On Earth as in Heaven, passim. For a brief introduction to the Orthodox approach to the ecological crisis, cf. J. Chryssavgis, ‘A New Heaven and a New Earth: Orthodox Theology and an Ecological World View’, The Ecumenical Review 62/2 (2020), 214–222.

[101] Roman Missal, Eucharistic Prayer III.

[102] Cf. Congregation for the Doctrine of the Faith, Letter Placuit Deo (22 February 2018).

[103] Cf. Thomas Aquinas, S.Th. I, q. 28, a. 2; q. 29, a. 4.

[104] Bonaventure, II Sent. dist. 16, q. 1, a. 1. Cited supra.

[105] The term ‘Anthropocene’, coined by the Nobel Laureate in Chemistry Paul Crutzen, is subject to debate amongst scientists.

[106] Roman Missal, Preface V of the Sundays in Ordinary Time.

[107] Cf. J. Zizioulas, ‘Relational Ontology: Insights from Patristic Thought’, in J. Polkinghorne (ed.), The Trinity and the Entangled World, Grand Rapids (MI), 2010, 146–156.

[108] Cf. Pontifical Biblical Commission, The Interpretation of the Bible in the Church, 1993.

[109] First Vatican Ecumenical Council, Dogmatic Constitution Dei Filius (24 April 1870), Chapter IV, ‘Faith and Reason’: DH 3017; John Paul II, Encyclical Letter Fides et ratio (14 September 1998).

[110] Apostolic Constitution Veritatis gaudium (8 December 2017), n.4c.

[111] Cf. P. Clayton – A. Peacocke (eds.), In Whom We Live and Move and Have Our Being: Panentheistic Reflections on God’s Presence in a Scientific World, Grand Rapids (MI) 2004; J.W. Cooper, Panentheism: The Other God of the Philosophers, Grand Rapids (MI) 2006.

[112] Cf. John Paul II, Letter to Reverend George V. Coyne, S.J., Director of the Vatican Observatory (1 June 1988).

[113] Cf. Bonaventure, Myst. Trin., q. 8, ad 3; Thomas Aquinas, S.Th. I, q. 32, a. 1, ad 3.

[114] Cf. E. McMullin and H. Rolston III, in John Paul II on Science and Religion: Reflections of the New View from Rome, Osservatorio Vaticano 1990, pp. 53–58 and 83–94, respectively.

[115] Various propositions put forward by sociobiology, which caused quite a stir at the time, deny that there is a significant leap between human beings and the rest of the animal kingdom. Cf. E. Wilson, Sociobiology: The New Synthesis, Cambridge (MA) 1975; idem, On Human Nature, Cambridge (MA) 1978; idem, Consilience: The Unity of Knowledge, New York 1998; R. Dawkins, The God Delusion, New York 20082.

[116] The footnote in the original refers to Gen 9:11; Deut 5:26; Job 34:15; Isa 40:6; 52:10; Ps 145 [144]:21; Luke 3:6; 1 Pet 1:24.

[117] John Paul II, Encyclical Letter Dominum et vivificantem (18 May 1986), no. 50. Italics and quotation marks as in the original. Cf. Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et spes (7 December 1965), no. 22.

[118] We draw inspiration from Pontifical Biblical Commission, Che cos’è l’uomo? Un itinerario di antropologia biblica, 2019; P. Beauchamp, El uno y el otro Testamento. Cumplir las Escrituras, Madrid 2015, 105–152.

[119] For the connection between the sixth and seventh days, cf. Ambrose, Hexaemeron 6.10.76 (CSEL 32/1, 261).

[120] Based on the Italian translation by the Pontifical Biblical Commission, Che cos’è l’uomo?, no. 46: “Facciamo l’uomo a nostra immagine (ṣelem) a nostra somiglianza (dəmût).”

[121] Cf. International Theological Commission, Quo vadis, humanitas? Thinking through Christian Anthropology in the face of certain scenarios for the future of humanity (2026), no. 117. See notes 51 and 52.

[122] Cf. Irenaeus of Lyons, Dem. 22; 32: FuP 2, 106; 123; Adv. haer. III, 22,1; 22,3: SCh 211, 432; 438; V, 16,2: SCh 153, 216; Tertullian, Res. 4,3–5: CCSL 2, 928; Adv. Prax. XII, 4: CCSL 2, 1173; Adv. Marc. V, 8,1: CCSL 1, 685; Origen, Hom. in Gen. I, 13: PG 12, 156–8; BPa 48, 92–95; Athanasius, Contra gentes 45: SCh 18 bis, 201; De incarnatione Verbi 14,2: SCh 199, 315; Hilary, Trac. Myst. I, 2: SCh 19 bis, 76; Peter Chrysologus, Ser. 117,1–2: CCSL 24A, 709; Gregory of Elvira, Tract. Orig. XIV, 25; XVI, 22: FuP 9, 344; 372; Aurelius Prudentius, Apotheosis, V, 309; 1040: Opere complete, Madrid 1981, 200; 240.

[123] Cf. also Irenaeus of Lyons, Adv. haer. III, 22,3: SCh 211, 439; Dem. 32: FuP 2, 122–123; Tertullian, Res. 6.3–5: CCSL 2, 928; Adv. Prax. 12.3–4: CCSL 2, 1173.

[124] Cf. Justin, Dial. 62: Bobichon I, 348–352; Theophilus of Antioch, Ad Autol. II, 18: FuP 16, 142; Irenaeus of Lyons, Adv. haer. IV, praef., 4: SCh 100/2, 391; IV, 20, 1 (627); V, 1,3: SCh 153,29; Tertullian, Res. 5,6; 6,4: CCSL 2, 927; 928; Adv. Prax. 12,1–2: CCSL 2, 1172–1173. Cf. notes 21, 22 and 23.

[125] Cf. Irenaeus of Lyons, Dem. 11: FuP 2, 79.

[126] Cf. Basil the Great, Hexaemeron 9.6: SCh 26 bis, 516–8; Gregory of Nyssa, De hominis opificio VI: PG 44, 140 B–C.

[127] Ephrem the Syrian, Hymni de Fide 18,4–5: CSCO 154, 96–97; 13,2–3: CSCO 154, 60.

[128] Leo XIV, Encyclical Letter Magnifica humanitas (15 May 2026), no. 50; see nos. 48–50.

[129] Cf. Council of Trent, Decree on Justification (13 January 1547), chaps. 5 and 6: DH 1525–1527 and canons 3–5, 7 and 9: DH 1553–1555, 1557, 1559.

[130] Cf. Irenaeus of Lyons, Adv. haer. IV, 39,2: SCh 100/2, 965–9; V, 6,1: SCh 153, 73–81; Clement of Alexandria, Strom. 2, 97, 1–2: FuP 10, 230; Origen, Prin. III, 6,1: FuP 27, 764–6; Ephrem, H. de Paradiso 9,19–20: CSCO 174, 40; trans. CSCO 175, 37.

[131] We shall follow closely, as we have done so far: Pontifical Biblical Commission, Che cos’è l’uomo?; P. Beauchamp, The Old and New Testaments, 105–152.

[132] Cf. Pontifical Biblical Commission, Che cos’è l’uomo? , no. 47.

[133] Cf. ibid., no. 217.

[134] We follow closely Pontifical Biblical Commission, Che cos’è l’uomo?, no. 72.

[135] Cf. ibid., nos. 271–275.

[136] Ibid., nos. 113–116.

[137] Cf. Didache, 14:1 (FuP 3, 106); Ignatius of Antioch, Magn. 9:1 (FuP 1, 132).

[138] Cf. John Paul II, Apostolic Letter Dies Domini (31 May 1998), no. 59.

[139] Cf. Epistle of Barnabas, 15:9: FuP 3, 216–8; SCh 172, 188–9; Augustine, Sermo 8 in octava Paschalis, 4: PL 46, 841. Cf. John Paul II, Apostolic Letter Dies Domini (31 May 1998), no. 26; J. Daniélou, Bible et liturgie. La théologie biblique des sacraments et des fêtes d’après les Pères de l’Église, Paris 19582.

[140] Cf. Francis, Bull Spes non confundit (9 May 2024), no. 20.

[141] Ignatius of Antioch, Eph. 20, 2: FuP 1,126. Cf. Serapion of Thmuis, Euchologium, 13,15: Funk 2, 176; Clement of Alexandria, Prot. X,106.2: FuP 21, 296; PG 8, 221B; Str. VII,11 [VII,61,5]: FuP 17, 452; PG 9, 485C.

[142] Cf. Paul VI, Apostolic Letter Octogesima adveniens (14 May 1971), no. 21; John Paul II, Encyclical Letter Redemptor hominis (4 March 1979), no. 15; Encyclical Letter Dives in misericordia (30 November 1980), no. 2; Message for the celebration of the 23rd World Day of Peace: ‘Peace with God the Creator, Peace with all of Creation’ (8 December 1989); Benedict XVI, Encyclical Letter Caritas in veritate (29 June 2009), no. 51. Many other texts and data can be found in J. Tatay, Ecología integral, 11–344.

[143] In December 2025, the report: United Nations Environment Programme, Global Environment Outlook 7 Executive Summary: A future we choose – Why investing in Earth now can lead to a trillion-dollar benefit for all, Nairobi 2025 (https://www.unep.org/resources/global-environment-outlook-7) confirms the data we present and emphasises the urgency of coordinated multilateral collective action.

[144] Global Biodiversity Outlook 5, Summary for Policymakers, 3.

[145] Ibid., 12.

[146] Programma delle Nazioni Unite per l’ambiente, Prospettive ambientali globali – GEO 6. Sintesi per i responsabili politici, Nairobi 2019, p. 7. Available in several languages at https://www.greenpolicyplatform.org/research/global-environment-outlook-6-summary-policymakers (accessed 16 April 2025).

[147] Ibid., 10–11.

[148] Ibid., 11.

[149] Ibid., 16. For further details, cf. ibid., 16–18.

[150] A future we choose, 7. Cf. also Prospettiva mondiale sulla diversità biologica 5, Sintesi per i responsabili politici, 23.

[151] Cf. Leo XIV, Message of the Holy Father for the tenth World Day of Prayer for the Care of Creation (30 June 2025), Seeds of Peace and Hope.

[152] Cf. Francis, Post-Synodal Apostolic Exhortation Querida Amazonia (2 February 2020), in particular Chapter I: ‘A Cultural Dream’; Synod of Bishops Special Assembly for the Pan-Amazonian Region, Amazonia: New Paths for the Church and for an Integral Ecology. Final Document (26 October 2019), especially nos. 10–14.

[153] Cf. id., Apostolic Journey to the Democratic Republic of the Congo and South Sudan. Meeting with authorities, civil society, and the diplomatic corps (31 January 2023).

[154] Italics in the original Italian.

[155] Cf. Prospettiva mondiale sulla diversità biologica 5, Sintesi per i responsabili politici, 16 and 23.

[156] Cf. John Paul II, Post-Synodal Apostolic Exhortation Reconciliatio et paenitentia (2 December 1984), no. 2; Compendium of the Social Doctrine of the Church, no. 119.

[157] In this sense: John Paul II, Message for the celebration of the 23rd World Day of Peace: Peace with God the Creator, Peace with all of Creation, nos. 3 and 6; Encyclical Letter Centesimus annus (1 May 1991), no. 38; Benedict XVI, Message for the 43rd World Day of Peace (1 January 2010), ‘If you want to cultivate peace, protect creation’, no. 6.

[158] Cf. Francis, Encyclical Letter Laudato si' (24 May 2015), no. 8, citing Ecumenical Patriarch Bartholomew, Keynote Address at the Symposium in Santa Barbara (California, 8 November 1997), reproduced in On Earth as in Heaven, 99.

[159] John Paul II, Homily at Zamosc (12 June 1999), no. 3.

[160] Synod of Bishops Special Assembly for the Pan-Amazonian Region, Amazonia: New Paths for the Church and for an Integral Ecology. Final Document (26 October 2019), no. 82; cf. also nos. 48 and 80.

[161] Leo XIV, Message of the Holy Father for the tenth World Day of Prayer for the Care of Creation (30 June2025), Seeds of Peace and Hope.

[162] Cf. John Paul II, Post-Synodal Apostolic Exhortation Reconciliatio et paenitentia (2 December 1984), no. 16.

[163] Cf. id., Encyclical Letter Sollicitudo rei socialis (30 December 1987), nos. 36–40, 46; General Audience (25 August 1999), Combating personal sin and the ‘structures of sin’; Catechism of the Catholic Church, no. 1869; Compendium of the Social Doctrine of the Church, nos. 193, 332, 446, 556.

[164] John Paul II, Post-Synodal Apostolic Exhortation Reconciliatio et paenitentia (2 December 1984), no. 16.

[165] Cf. Francis, Message for the celebration of the 54th World Day of Peace (8 December 2020), A Culture of Care as a Path to Peace.

[166] John Paul II, Post-Synodal Apostolic Exhortation Reconciliatio et paenitentia (2 December 1984), no. 16.

[167] Leo XIV, Message of the Holy Father for the tenth World Day of Prayer for the Care of Creation (30 June 2025), Seeds of Peace and Hope.

[168] Cf. Leo XIV, Encyclical Letter Magnifica humanitas (15 May 2026); Dicastery for the Doctrine of the Faith and Dicastery for Culture and Education, Note Antiqua et nova (28 January 2025); International Theological Commission, Quo vadis, humanitas?(2026).

[169] A. Naess, Ecology. Community and Lifestyle: Outline of an Ecosophy, Cambridge 1989 (translation from the original Norwegian of 1976); ‘The Shallow and the Deep, Long-Range Ecology Movement: A Summary’, Inquiry 16 (1973), 95–100; ‘A Defence of the Deep Ecology Movement’: Environmental Ethics 6 (1984), 265–70; G. Sessions (ed.), Deep Ecology for the Twenty-first Century: Readings on the Philosophy and Practice of the New Environmentalism, Boston – London 1995; M. E. Zimmerman et al., Environmental Philosophy: From Animal Rights to Radical Ecology, Englewood Cliffs (NJ) 1993.

[170] Cf. W. Aiken, ‘Ethical Issues in Agriculture’, in T. Regan (ed.), Earthbound: New Introductory Essays in Environmental Ethics, New York 1984, 247–88.

[171] ‘Let no one irresponsibly destroy the natural goods that speak of the goodness and beauty of the Creator, nor, much less, submit to them as a slave or worshipper of nature’: Telegram of the Holy Father, signed by the Cardinal Secretary of State, to the bishops of the Ecclesial Conference of the Amazon, 18 August 2025.

[172] Cf. Benedict XVI, Message for the 43rd World Day of Peace (1 January 2010), ‘If you want to cultivate peace, protect creation’, 13; cf. id., Encyclical Letter Caritas in veritate (29 June 2009), no. 48; John Paul II, Encyclical Letter Redemptor hominis (4 March 1979), no. 15; id., Encyclical Letter Centesimus annus (1 May 1991), nos. 37–38.

[173] It is heavily criticised by R. Bauckham, Bible and Ecology: Rediscovering the Community of Creation, London 20213 (2010), 1–36.

[174] Cf. J. Chryssavgis and N. Asproulis (eds.), Priests of Creation: John Zizioulas on Discerning the Ecological Ethos, London 2021. The same perspective is found in O. Clément, Il senso della terra. Il creato nella visione cristiana, Lipa, Roma 2007; A. Schmemann, L’Eucaristia. Sacramento del Regno, Edizioni Qiqajon – Comunità di Bose, Magnano (Bi) 2005.

[175] Cf. J. Peçanha Enqvist, S. West, V. A. Masterson, L. J. Haider, U. Svedin, M. Tengö, ‘Stewardship as a boundary object for sustainability research: Linking care, knowledge and agency’: Landscape and Urban Planning 179 (2018), 17–37.

[176] John Paul II, Apostolic Exhortation Ecclesia in Asia (6 November 1999), no. 41; where he refers to Encyclical Letter Redemptor hominis (4 March 1979), no. 15: ‘Yet it was the Creator's will that the human being should communicate with nature as an intelligent and noble "lord" and "steward", and not as a heedless "exploiter" and "destroyer".’

[177] Id., Letter to Reverend George V. Coyne, S.J., Director of the Vatican Observatory (1 June 1988).

[178] Cf. Gregory of Nyssa, De Opificio hominis 16: PG 44, 181B; In Canticum canticorum 11: GNO VI, 333,13–15; De anima et resurrectionem: GNO III/3, 781ff.; Homiliae in Hexaemeron: PG 44, 121; Maximus the Confessor, Amb. 41: PG 91, 1304–1305.

[179] Cf. Maximus the Confessor, Thal. 51: SCh 554, 148–151.

[180] For this reason, in keeping with the spirituality and theology of the Christian East, human beings are sometimes referred to as ‘priests of creation’. However, R. Bauckham, in Bible and Ecology, pp. 83–86, criticises this category for an anthropocentric tone that detracts from the central role of creation itself in its praise of the Creator.

[181] Cf. Maximus the Confessor, Thal. 51: SCh 554, 142–143.

[182] Ibid. 1: SCh 529, 134.

[183] Id., Amb. 41: PG 91, 1308–1312.

[184] It is in this light that the contribution of Fr. Teilhard de Chardin should be understood; cf. Paul VI, Discorso in un importante stabilimento chimico-farmaceutico (24 February 1966): Insegnamenti 4 (1966), 992–993; John Paul II, Letter to Reverend George V. Coyne, S.J., Director of the Vatican Observatory (1 June 1988). Insegnamenti 5/2 (2009), 60; Benedict XVI, Homily for the celebration of Vespers with the faithful of Aosta (Italy) (24 July 2009): L’Osservatore Romano, 31 July 2009, p. 3ff.

[185] Cf. Benedict XVI, Post-Synodal Apostolic Exhortation Sacramentum caritatis (22 February 2007), no. 92.

[186] Cf. Synod of Bishops Special Assembly for the Pan-Amazonian Region, Amazonia: New Paths for the Church and for an Integral Ecology. Final Document (26 October 2019), nos. 17–19 and 65–85.

[187] A valid proposal can be found in the Earth Bible Project, the result of a consensus among numerous biblical scholars. They set out the following principles: 1) the principle of intrinsic value; 2) the principle of interconnectedness; 3) the principle of voice; 4) the principle of purpose; 5) the principle of mutual custodianship; 6) the principle of resistance. Cf. https://www.webofcreation.org/Earthbible/ebprinciples.html. These principles are in line with LS.

[188] Cf. John Paul II, Encyclical Letter Fides et ratio (14 September 1998).

[189] Cf. International Theological Commission, In Search of a Universal Ethic: A New Look at the Natural Law (2009).

[190] Apostolic Letter Tertio millennio adveniente (10 November 1994), no. 13.

[191] Cf. M. García Fernández, ‘Leviticus 25 – Towards a Common Home and an Integral Ecology’: Religions 14 (2023), 1501, https://doi.org/10.3390/rel14121501; F. Cocco, ‘Cuando la tierra descansa. Claves bíblicas para entender el jubileo’: Sal Terrae 113 (2025), 393–404.

[192] Cf. in this document the chapter ‘The Trinitarian imprint in creation’, nos. 17–33. Cf. also: Ps 19; LS 73–86.

[193] Cf. Catechism of the Catholic Church, nos. 399, 2415–2418.

[194] Bonaventure, Legenda maior, 9,1: St Francis of Assisi, Escritos. Biografías. Documentos de la época, edited by J. A. Guerra, Madrid 19802, 436.

[195] Cf. Francis, Message for the celebration of the 54th World Day of Peace (8 December 2020), A Culture of Care as a Path to Peace.

[196] Cf., for example, R. Bauckham, Bible and Ecology: Rediscovering the Community of Creation,Londra32021 (2010); C. Yebra Rovira, E. Aldave Medrano (eds.), Biblia y ecología: nuevas lecturas en un mundo herido, Estella (Navarre) 2024; J. Tatay, ‘The Evolution of Catholic Ecological Hermeneutics’, Theological Studies 85/3 (2024), 379–399; F. Milán, ‘Hiperconectado con su entorno: una lectura ecológica del libro de Jonás’: Estudios Eclesiásticos 99/390 (2024) 669–708.

[197] Cf. in particular, Ecumenical Patriarch Bartholomew, On Earth as in Heaven: Ecological Vision and Initiatives of Ecumenical Patriarch Bartholomew, edited by J. Chryssavgis, New York 2012.

[198] Cf. Rio Declaration on Environment and Development (3–14 June 1992), in particular Principle 7 (https://www.un.org/spanish/esa/sustdev/agenda21/riodeclaration.htm. Accessed 7 February 2026). United States Conference of Catholic Bishops, Global Climate Change: A Plea for Dialogue, Prudence and the Common Good (15 June 2001).

[199] Congregation for the Doctrine of the Faith, Declaration Dignitas infinita (2 April 2024), nos. 1, 11, 12, 18, 22, 38.

[200] Cf. Universal Declaration of Human Rights; John XXIII, Encyclical Letter Pacem in terris (11 April 1963), nos. 11–27.

[201] Compendium of the Social Doctrine of the Church, no. 177. More recently, Leo XIV, Encyclical Letter Magnifica humanitas (15 May 2026), nos. 65–67.

[202] Cf. Benedict XVI, Encyclical Letter Deus caritas est (25 December 2005); Francis, Encyclical Letter Dilexit nos (24 October 2024); Leo XIV, Apostolic Exhortation Dilexi te (4 October 2025).

[203] Benedict XVI, Address to the Inaugural Session of the Fifth General Conference of the bishops of Latin America and the Caribbean (Aparecida, 13 May 2007), no. 3.

[204] Cf. Leo XIV, Apostolic Exhortation Dilexi te (4 October 2025), especially Chapter II (nos. 16–34) and passim.

[205] Cf. J. Martínez, Conciencia, discernimiento y verdad, Madrid 2019; T. Mifsud, ‘El discernimiento: de la espiritualidad a la ética’, Cuestiones Teológicas 47, no. 108 (2020), 134–145.

[206] S.Th. I–II, q. 14, a. 1.

[207] Cf. Catechism of the Catholic Church, nos. 1776–1794.

[208] Cf. Francis, Apostolic Exhortation Gaudete et exsultate (19 March 2018), nos. 166–175.

[209] Cf. John Chrysostom, Hom. on Mt I, 1: PG 57, 13–15; Thomas Aquinas, S.Th. I–II, q. 106, a. 1.

[210] Cf. Congregation for the Doctrine of the Faith, Declaration Dignitas infinita (2 April 2024).

[211] Cf. John Paul II, Encyclical Letter Redemptoris missio (7 December 1990), nos. 28–29 and 55–56; International Theological Commission, Christianity and the World Religions (1996), nos. 81–87.

[212] Midrash Ecclesiastes Rabbah 7:13.

[213] A. Waskow (ed.), Torah of the Earth: Exploring 4,000 Years of Ecology in Jewish Thought, vol. 1: Biblical Judaism and Rabbinism, vol. 2: Zionism and Eco-Judaism, Woodstock (VT) 2000; in particular, J. Benstein, vol. 1, chapter 21: ‘Nature vs. Torah’, 180–207; E. Katz, ‘Nature’s Healing Power, the Holocaust and the Environmental Crisis’: Judaism. A Quarterly Review of Jewish Life and Thought, 1 January 1997, 309–320.

[214] Qur’an 17:44.

[215] Cf. Qur’an 6:38.

[216] Cf. M. K. Gueye and N. Mohamed, ‘An Islamic Perspective on Ecology and Sustainability’, in L. Hufnagel (ed.), Ecotheology. Sustainability and Religions of the Earth, London 2023. DOI: 10.5772/intechopen.105032; O. Llewellyn, F. Khalid et al., Al-Mizan: Covenant for the Earth, Birmingham 2024. Cf. also the contributions of the Laudato Si’ Research Institute at Campion Hall (Oxford): https://lsri.campion.ox.ac.uk/node/276.

[217] Cf. Purusha Sukta in the Rig Veda, X,90.

[218] Cf. Brhadaranyaka Upanisad, II,1.

[219] Maha Upanishad, 6.71–75.

[220] Cf. FABC (Federation of Asian Bishops’ Conferences) – OTC (Office of Theological Concerns), Sprouts of Theology from the Asian Soil: Collection of TAC and OTC Documents [1987–2007], Vimal Tirimanna (ed.), Bangalore (India) 2007, 388–389.

[221] Cf. H. de Lubac, Aspects du Bouddhisme, Paris 1951, 11–12.

[222] Cf. FABC – OTC, Sprouts of Theology from the Asian Soil, 395–396.

[223] The work of the African Society of Culture has demonstrated just how imprecise and inadequate certain terms used to describe this religious reality are: animism, fetishism, pantheism, manism, totemism, etc. Cf. Société Africaine de Culture, Colloque sur les religions, Abidjan 5–12 December 1961, Paris 1962; Les Religions africaines traditionnelles, Paris 1965; Les Religions africaines comme source de valeurs de civilisation, Paris 1972. Cf. also B. Adoukonou, alons pour une théologie africaine. Essai d’une herméneutique chrétienne du Vodun dahoméen, 2 vols., Paris 1980.

[224] Cf. L. Magesa, African Religion: The Moral Traditions of Abundant Life, Maryknoll (NY) 1997.

[225] Le Sillon Noir, Une expérience africaine d’inculturation, vol. 2, Cotonou 1992.

[226] Cf. J. S. Mbiti, African Religions and Philosophy, 2nd rev. and expanded ed., Oxford 1990.

[227] Cf. A. Pieris, An Asian Theology of Liberation, Edinburgh 1988, 54.

[228] Cf. J. Grim, ‘Indigenous Cosmovisions: Introduction’ in W. Jenkins, M. E. Tucker and J. Grim (eds.), Routledge Handbook of Religion and Ecology, New York 2017, 107–108; M. Henare, ‘Pacific Region. In search of harmony: Indigenous traditions of the Pacific and ecology’, in Routledge Handbook of Religion, 129–137.

[229] Summa contra gentiles, II, 3.

[230] Cf. R. Williams, Looking East in Winter, London 2021.

[231] Francis, Homily for the beginning of the Petrine Ministry of the Bishop of Rome (19 March 2013).

[232] Id., Homily for the Pastoral Visit to Assisi (4 October 2013), no. 3.

[233] Catechism of the Catholic Church, no. 1817.