Magnifica Humanitas: Pope Leo XIV Confronts the Age of Artificial Intelligence
In his first encyclical, Pope Leo XIV warns that artificial intelligence is not merely a technological revolution, but a moral test for humanity, democracy, labor, peace, and the future of the common good.
The Vatican has entered the global debate over artificial intelligence with one of its most consequential moral interventions in decades.
In Magnifica Humanitas, Pope Leo XIV’s first encyclical, the newly elected pontiff frames the rise of artificial intelligence as the defining “new thing” of the modern age, placing it in direct continuity with the Catholic Church’s social teaching tradition that began with Pope Leo XIII’s Rerum Novarum in 1891. Signed on May 15, the 135th anniversary of Rerum Novarum, and released by the Holy See on May 25, the document is formally titled On Safeguarding the Human Person in the Time of Artificial Intelligence.
Its central question is not whether AI should advance, but whether humanity will remain human while it does.
“Humanity, created by God in all its grandeur, is today facing a pivotal choice,” Pope Leo writes at the opening of the encyclical, “either to construct a new Tower of Babel or to build the city in which God and humanity dwell together.”
That choice, in Leo’s telling, is the choice now facing governments, technology companies, investors, workers, educators, and citizens across the world.
The New Social Question
For more than a century, Catholic social teaching has responded to moments when economic and technological change threatened to outpace the moral frameworks needed to guide it. Rerum Novarum addressed the industrial revolution, labor exploitation, capital, and the rights of workers. Laudato Si’ brought ecological breakdown and climate change into the center of global moral discourse.
Magnifica Humanitas now does the same for artificial intelligence.
The encyclical argues that digitalization, robotics, and AI are transforming not only markets and institutions, but “decision-making processes” and the “collective imagination.” Pope Leo does not reject technology. He acknowledges that technological development has improved human life across history. But he insists that technology is never neutral, because it reflects the intentions, incentives, and power structures of those who design, finance, regulate, and deploy it.
This is the heart of the document’s warning: AI is not simply a tool. It is becoming an architecture of power.
Pope Leo writes that while states once played a central role in guiding innovation, the main drivers of technological development today are often private, transnational actors with resources that exceed those of many governments. That concentration of power, he argues, makes it harder for societies to discern, govern, and direct technological progress toward the common good.
For SDG News readers, this is the global governance challenge in its sharpest form: a technology capable of transforming education, health, agriculture, finance, security, media, and public administration is increasingly shaped by a narrow set of private actors, while the public institutions responsible for protecting citizens are still struggling to catch up.
Babel or Jerusalem
The encyclical’s most powerful image is biblical.
Pope Leo contrasts two models of civilization: Babel and Jerusalem.
Babel represents technological ambition detached from humility, diversity, and moral responsibility. It is the world of uniformity, domination, efficiency without dignity, and progress without communion. Jerusalem, through the story of Nehemiah, represents rebuilding through shared responsibility, where families, workers, leaders, and communities each take up their section of the wall.
The metaphor is not accidental. It gives the encyclical its governing framework.
AI can become Babel if it is built to consolidate power, manipulate truth, replace human judgment, deepen inequality, or reduce the mystery of the person to data and performance. But it can also become part of Jerusalem if it is governed toward healing, education, protection of the planet, social inclusion, and the rebuilding of trust.
“The primary choice is not between a ‘yes’ or ‘no’ to technology,” Pope Leo writes, “but rather between constructing Babel or rebuilding Jerusalem.”
That sentence may become one of the defining moral formulations of the AI age.
Truth as a Public Good
One of the encyclical’s most urgent sections focuses on truth.
Pope Leo warns that AI is reshaping communication, democracy, and the public imagination. In an age of synthetic media, algorithmic amplification, political manipulation, and information overload, truth itself becomes a common good that must be protected.
The concern is not theoretical. Around the world, governments are already confronting AI-generated disinformation, deepfakes, automated propaganda, and the erosion of shared reality. For democracies, the danger is existential: if citizens cannot distinguish truth from simulation, public trust collapses and democratic decision-making becomes vulnerable to manipulation.
Pope Leo calls for what he describes as an “ecology of communication,” linking the digital information environment to the same moral logic that underpins ecological responsibility. Just as societies must protect air, water, forests, and oceans, they must also protect the conditions that make human understanding, dialogue, and democratic life possible.
This is where Magnifica Humanitas moves beyond Catholic theology into a broader global development agenda. The integrity of information is now a prerequisite for institutional trust, peaceful societies, and accountable governance.
The Future of Work
The encyclical also places labor at the center of the AI debate.
Pope Leo’s decision to sign the document on the anniversary of Rerum Novarum is more than symbolic. It signals that the age of AI is producing a new labor question.
Automation, algorithmic management, and generative AI are already changing the nature of work across sectors. The encyclical warns against economic models that treat human beings as disposable, reduce workers to inputs, or celebrate efficiency while ignoring unemployment, insecurity, and the dignity that comes from meaningful labor.
The Pope calls for an economy that values dignity, protects families and young people, and ensures that technological progress does not leave entire populations behind.
This framing matters for the Sustainable Development Goals. AI is often presented as an accelerator of progress, and it can be. But without inclusive governance, it can also widen the gap between countries, companies, and communities that control the technology and those subjected to it.
The encyclical’s message is clear: an AI economy that produces abundance for some while displacing, surveilling, or exploiting others cannot be considered progress.
AI, War, and the Crisis of Multilateralism
Perhaps the most geopolitically significant section of Magnifica Humanitas addresses war.
Pope Leo places AI weapons, the normalization of war, and the crisis of multilateralism within the same moral frame. The document warns against a “culture of power” that treats force as limitless and increasingly delegates life-and-death decisions to machines. Reuters reported that the encyclical calls for urgent global regulation of AI and warns that some weapons may already be moving beyond meaningful human control.
The Associated Press likewise described the encyclical as a major call for legal frameworks, independent oversight, and ethical governance of AI, including in military applications.
For a world already destabilized by wars, drone proliferation, cyber operations, and intensifying geopolitical competition, Pope Leo’s intervention is timely. He is not speaking only to Catholic believers. He is addressing defense ministries, technology firms, multilateral institutions, and governments racing to define the military edge of the 21st century.
The encyclical’s core warning is that humanity cannot allow strategic competition to erase moral limits.
A Challenge to Silicon Valley and Sovereigns Alike
Although theological in form, Magnifica Humanitas reads in many places like a governance manifesto.
The Pope calls for regulation, transparency, human responsibility, digital literacy, social impact assessment, and the inclusion of the most vulnerable. He urges societies to ask who holds technological power, how it is used, and whether it serves the common good.
This places responsibility on both private companies and governments.
Technology companies are challenged to move beyond the language of innovation and confront the social consequences of what they build. Governments are challenged to modernize regulatory capacity without stifling beneficial innovation. Investors are challenged to ask whether capital is accelerating human development or merely scaling systems of dependency and control.
The encyclical also speaks directly to multilateral institutions. In a fragmented world, AI governance cannot be left to national competition alone. If the technology is global, the moral and regulatory conversation must be global as well.
The Human Person at the Center
The defining phrase of Magnifica Humanitas is not artificial intelligence. It is the human person.
Pope Leo’s ultimate concern is that humanity may become so captivated by machine capability that it forgets the mystery, dignity, vulnerability, and spiritual depth of human life. He warns against transhumanist and posthumanist narratives that treat human limitation as a defect to be overcome rather than part of the condition through which solidarity, care, and love become possible.
“In the era of artificial intelligence,” he writes, “when human dignity is threatened by new forms of dehumanization, ours is the pressing duty to remain profoundly human.”
That is the encyclical’s enduring contribution.
It does not offer a technical blueprint. It offers a moral compass.
Why It Matters for the Global Development Agenda
For the global development community, Magnifica Humanitas arrives at a critical moment.
Artificial intelligence is already being integrated into nearly every domain of human progress: climate modeling, health diagnostics, education platforms, food systems, disaster preparedness, financial inclusion, public service delivery, and humanitarian response. It may help accelerate solutions to some of the world’s most urgent challenges. But it may also reproduce the very inequalities that global leaders have spent decades trying to overcome.
The encyclical insists that AI must be judged not only by what it can do, but by whom it serves. Does it advance human dignity? Does it strengthen peace? Does it protect workers, children, communities, and the natural world? Does it expand opportunity, or consolidate power?
That framework places Pope Leo XIV’s message squarely within the future of international cooperation. Progress cannot be measured only by growth, speed, or efficiency. It must be measured by whether people and communities can flourish.
In that sense, Magnifica Humanitas is not simply a Catholic document about technology. It is a global appeal for a more human future.
The Construction Site of Our Time
At the close of the encyclical, Pope Leo returns to the image of building.
The world, he suggests, is now a construction site. The question is what kind of civilization will be built there.
One path leads to Babel: a future of concentrated power, automated violence, manipulated truth, disposable labor, and technological ambition without moral restraint.
The other path leads to Jerusalem: a future built through shared responsibility, human dignity, solidarity, justice, and peace.
For governments, investors, innovators, and institutions, Magnifica Humanitas is a challenge to choose.
Artificial intelligence will shape the future. Pope Leo XIV is asking whether humanity will have the wisdom to shape it back.
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