Pope Leo XIV has published his message for the XI World Day of Prayer for the Care of Creation, to be celebrated on September 1 under the theme “They shall beat their swords into plowshares, and their spears into pruning hooks” (Is 2:4).
The Pontiff focuses his reflection on the relationship between war, the degradation of creation, and the disorder of the human heart, maintaining that conflicts are not only a political failure, but also a “moral and spiritual” one.
Leo XIV affirms that building peace requires more than structural reforms and calls for a “personal and collective conversion” that orders desires and allows resources destined for war to be transformed into instruments at the service of life, the poor, and creation.
Taking up an expression from Benedict XVI, he warns that “the deserts of the world are multiplying, because the deserts in the human heart have become so vast,” and points to the deep causes of conflicts and the exploitation of creation as “the loss of the sense of limits, the desire for domination, the pursuit of immediate gain, and the inability to recognize the dignity given by God to every human person.”
Below, we offer the full message of the Holy Father:
“They shall beat their swords into plowshares, and their spears into pruning hooks” (Is 2:4)
Dear brothers and sisters:
Our Lord Jesus Christ came that we might have life and have it in abundance (cf. Jn 10:10). This gift of life lies at the very heart of our mission as disciples and of our common call to build a civilization of love. As we can see, on this World Day of Prayer for the Care of Creation, we are once again invited to contemplate the gift of life and to appreciate the earth that sustains it, for these are tangible ways of praising our Creator.
At present, we are witnessing multiple crises and great human suffering. At the same time, it seems that the disruption of the harmonious balance of creation is accelerating. These phenomena are not unrelated; they are a single appeal for healing and peace arising from a wounded world.
The God of life, revealed in Jesus Christ, offers a peace that the world cannot give: “Peace I leave with you; my peace I give to you” (Jn 14:27). This peace is neither superficial nor fleeting; it flows from the enduring love of Christ and his concern for every human person.
Yet this promise of peace stands in stark contrast to the realities we see in many parts of the world. The prophet Isaiah spoke of a time when the nations “shall beat their swords into plowshares” (Is 2:4), transforming what destroys life into what sustains it. But today, we often witness the opposite, as efforts continue to focus on violence and war.
War leaves wounds that extend far beyond the battlefield. It takes lives, tears families apart, and forces millions of people to abandon their homes, increasing fear, injustice, and division (cf. Gaudium et spes, 77-82). War also leaves behind social and ecological destruction that lasts for generations. Moreover, the interaction between armed conflicts and environmental degradation often creates vicious cycles that destroy ecosystems, pollute essential resources such as air and water, and undermine food security. This generates poverty, inequality, and new social conflicts that can contribute to the resurgence of future conflicts.
Beyond this, war creates injuries that harm the entire fabric of life, damaging not only individuals and communities, but also their wide network of relationships with the entire human family, as well as their harmony with creation. This reveals a deeper failure to live in the image and likeness of God, to respect life, and to care for the earth entrusted to us. It is not only a political failure, but also a moral and spiritual one. War, rooted in distorted desires and the misuse of human freedom and power, stands as a counter-witness to the Gospel of peace.
The crises mentioned above call not only for responsibility but also for a conversion of the heart that bears fruit in deeper fidelity to God, in mutual love, and in respect for the gift of creation. Indeed, the discords we witness in the world—such as violence, injustice, and ecological harm—do not simply result from imperfect structures or systems; they are the “symptom of a deeper dichotomy rooted in humanity itself” (Gaudium et spes, 10). In fact, the human heart is the place where the fiercest battles are fought and where our fallen condition is revealed. It is not only the seat of emotions, but the center of the person—where reason, desires, will, and conscience converge. It is here that we struggle with our conflicting desires between love and indifference, truth and illusion, justice and injustice (Jas 1:14-15). The harms of war and the degradation of the earth are thus deeply linked to the condition of the human heart. The conflicts that afflict humanity are, in various ways, the outward expression of inner discord and division. When the heart is distorted, relationships suffer and the structures we build begin to reflect that disorder.
Pope Benedict XVI reminded us that “the deserts of the world are multiplying, because the deserts in the human heart have become so vast” (Homily at the Beginning of the Petrine Ministry, April 24, 2005). This calls us to recognize that what is ruined in our environment is, in some way, also ruined within us. To build a peaceful society, we must therefore not only reform structures, but renew our hearts. The underlying causes of conflict and the exploitation of creation stem from an ethical and cultural crisis, as well as a loss of the sense of limits, the desire for domination, the pursuit of immediate gain, and the inability to recognize the dignity given by God to every human person.
The prophetic saying “they shall beat their swords into plowshares” (Is 2:4) is therefore not only a vision for nations, but a call to every person. It invites us to transform wounds into life. Yet this transformation cannot be achieved through mere external change; it requires, through our cooperation with God’s grace, a deeper personal and collective conversion—a return to God that reorders our desires, heals our wounds, and helps us grow in virtue.
Without this inner transformation, peace will remain fragile and fleeting. But where hearts are renewed, new possibilities begin to open. What has been used for destruction can be redirected toward life: the care of the poor, the feeding of the hungry, and the care of creation. This is the path of authentic ecological conversion, where the effects of our encounter with Jesus Christ become evident in our relationship with the world around us (cf. Francis, Laudato si’, 217). Peace then begins in our hearts and extends to our relationships, our communities, and the world as a whole.
Although the challenges before us are immense, God does not leave us without the means to heal and transform. Instead of weapons of war, the God of peace fills us with strength to heal, to reconcile, and to build a civilization of love. In this sense, we are called to care for the many “ecosystems” entrusted to us: the ecosystems of creation, of human relationships, and of the human heart itself.
Let us imagine a world in which the efforts currently invested in war were directed toward integral human development, the fight against poverty, the protection of human dignity, and the reconciliation of divided peoples. Such a vision reflects faith in the coming of the Kingdom of God.
The true instruments for building peace are not destructive weapons; rather, they are truth, dialogue, patience, kindness, justice, mercy, understanding, care, and love. These instruments spring from hearts formed by the Gospel and sustained by the grace of God. Only these qualities have the power to transform individuals, renew communities, and heal the wounds of our world.
Dear brothers and sisters, the path before us is clear, though not easy. We are called to allow our hearts to be renewed so that we may promote peace and care for creation. Sacred Scripture tells us to guard our hearts, for from them flow all that we do (cf. Pr 4:23).
If we take on this task with humility and faith, we will become collaborators in God’s renewing work. We will advance slowly but steadily, from the desert to the garden, from division to communion, and from violence to peace.
May the Lord grant us the courage to walk this path, so that in our time swords may truly be beaten into plowshares, the promise of the Gospel may take root in our world, and the peace of Christ may reign over all creation.
Vatican, August 15, 2026, Solemnity of the Assumption of the Blessed Virgin Mary.
LEO PP. XIV