Why Pope Leo XIV is speaking up about artificial intelligence and humanity

Monday morning, the Roman Catholic Church made its biggest foray yet into the discourse on artificial intelligence and the role it should play in human life as the technology develops.

In the first encyclical of his papacy, titled Magnifica humanitas (Latin for “magnificent humanity”), Pope Leo XIV argued that AI is not intrinsically immoral, but that its adoption needed to be slowed in order to build moral guardrails, to establish better social safety nets for those displaced by economic and labor disruptions, and to create democratic processes that will ensure the public remains in control of these developments, rather than a small subset of tech oligarchs. The document also contended that the “intelligence” in artificial intelligence was a misnomer: Intelligence is something only human persons possess, and technology will never be human.

Encyclicals are official teaching documents of the Catholic Church: letters issued by popes to bishops after consultation with theologians, historians, and experts on pressing matters that affect humanity or the church, with the expectation that all people, faithful or secular, can learn from them and help shape their consciences and lives. Magnifica humanitas is Leo’s first encyclical since becoming pope last year, and its release now underscores the focus the new pope is putting on AI and technology. Notably, Leo also used the occasion to make a historic formal apology for the Church’s previous defense and justification of slavery — a reminder that the Catholic Church has not always been on the right side of social ills.

Though popes are traditionally not present during the release of these documents, which first began in the 18th century, Leo XIV was in attendance at its presentation, and delivered his own comments — something Vatican observers indicated reflected his desire to make sure the Church’s stance was properly understood. The Chicago-born pontiff spoke in English and was joined by AI experts and industry leaders, including Anthropic co-founder Chris Olah, who consulted on the document.

So how should the public process and think about this new document? It’s helpful to first understand the context in which the Church is speaking up about this at all.

Why the Catholic Church cares so much about AI’s development

Magnifica humanitas is dropping more than a week after Pope Leo XIV actually signed it on May 15. The timing matters.

That day marked 135 years since the release of Rerum Novarum, the seminal work of Pope Leo XIII, the current pope’s namesake, who was leading the church during the late stages of the Industrial Revolution. As they are today, the faithful, and the clergy, were facing a rapidly changing world. And the Church, the world’s leading moral authority at the time, had yet to establish its place in it.

That 19th-century document made philosophical arguments about the relationship between labor and capital, warning about the perils of communism. But it also redefined the church’s relationship to the modern world, with the papacy reasserting itself as both a source of power and a moral authority in an era of rapid change. The encyclical set a template for how a 2,000-year-old institution could still remain relevant in a modern age.

In presenting this encyclical, Pope Leo XIV made this parallel clear. He sees the rise of artificial intelligence as the defining global challenge of the day, and of his pontificate: “Like the earlier Leo, I feel entrusted to look upon another huge transformation with eyes of faith, with lucidity of reason, with openness to mystery and with cries of the poor and the earth resounding in my heart,” the pope said while presenting his encyclical.

The newer encyclical builds off his predecessor’s tradition, and the various arguments popes have made about the importance of preserving the dignity of the human person and valuing modern technology only so long as it benefits everyone, not just its creators or the rich.

In 2015, Pope Francis, for example, wrote about “the technocratic paradigm” that has taken root in modern capitalism: the sense that technological progress is unstoppable, that it will demand unlimited concessions from nature and from people, and that the world had no choice but to submit to change.

“Leo is concerned that we don’t just submit to inevitability on questions of AI, but ask critical questions and push back in ways that are necessary before it’s too late to push back, before damage is done that can’t easily be undone,” Dan Rober, an associate professor of Catholic Studies at Sacred Heart University, told me.

That role of questioning, pausing, and coming to consensus has defined the Catholic Church’s leadership and operation for the last two papacies: the notion of synodality, or teaching and making decisions based on consensus. Before AI and the technologists who have created it become the sole determinants of how politics, the economy, and society operates, the Church is asserting itself as a counterweight — even as it includes some of those leaders in the process.

“Pope Leo is trying to clearly walk in those footsteps, and I think he’s very concerned, as are a lot of people, about the possible implications, particularly for job markets and for people’s lifestyles being sustainable day to day with the rise of AI systems that may render a certain significant amount of jobs able to be automated very rapidly,” Rober said.

This kind of reflection has become standard procedure for the Vatican. Since at least the turn of the century, the Church has found itself increasingly weighing in on the crises of the day, albeit often a bit too late.

As the Catholic writer Christopher Hale has noted, “Francis took up the climate fight with Laudato Si in 2015, after decades of scientific consensus had been ignored. Benedict XVI took up the global economic order with Caritas in Veritate in 2009, after the financial system had already collapsed. Both documents arrived in the long shadow of the crises they addressed.”

In Magnifica humanitas, Pope Leo XIV may be seeking to intervene early in the development or takeover of a new technology this time, and show that the Church wants to both work with Silicon Valley and assert itself as a powerful defender of modern values, as it has done in its defense of the liberal international order and aspects of humanism, like human autonomy and reason.

In the background, there’s also a more sci-fi element: the notion that AI could end up coming between the Church and the people — serving as a filter or layer between regular people and God, and perhaps even usurping the role of the Church itself. The Catholic Church, famously, is concerned with the proper interpretation of scripture, Biblical truths, ethics, and God. Bloody wars waged and hard-fought reformations turned on this central question of who and how one can commune with God. Now, AI enters as another middleman.

“That’s closely related to the question of people using AI as a therapist,” Rober told me. “You could see a way in which AI becomes its own kind of religion, and certainly the way a lot of the Silicon Valley founders talk about it, it does have religious overtones to it. You listen to the Google founders talk about the singularity, and that sounds a lot like religion.”

It’s in this context that this document, and its specific teachings, lands.

What the Church is teaching about AI

Magnifica Humanitas is not the Vatican’s first examination of the role of AI in modern life.

Just last year, in the twilight of Pope Francis’s pontificate, the Vatican released a teaching note, Antiqua et nova, that laid the groundwork for Leo’s encyclical. That 2025 document established that the Church is not opposed to the development of AI: technological progress and scientific discoveries are part of the natural way that humans are meant to honor God, his creation of humanity in his image, and the natural outpouring of God’s gift of reason and rationality.

But it also established a distinction between human intelligence and machines that analyze data and perform processes. It insisted that artificial intelligence, like all technology, should serve humanity, not the other way around. And it emphasized the risk that new technology poses to the ability to, right to, and dignity of work, especially for the least well off in society.

In the encyclical, Leo uses the biblical parable of the Tower of Babel — a warning about human hubris — to make this case: “We must, then, avoid the ‘Babel syndrome,’ namely the idolatry of profit that sacrifices the weak,” he writes. “The risk of dehumanization — of building a future that excludes God and reduces the other to a means — is an ancient and ever-new temptation that today takes on a technical guise.”

This builds off of a long tradition of focusing on not just the dignity of work and workers, but also more recent concerns that modern capitalism facilitates a “throwaway culture” that views people and things as, at best, cogs in the service of a greater machine.

“He wants to talk about the idea that our humanity is meaningful in and of itself and that work is part of that, even if AI systems are able to allow for more leisure and even if something like universal basic income were to be made available, people need to find to have work of some kind to have meaning in their lives,” Rober said.

The encyclical’s teachings can be broken up into three broad categories: regulations on how AI is developed and how individuals adopt it, the responses required to handle the economic effects of AI, and limits on AI’s usage in war.

The practical recommendations and concerns Leo outlines include:

From an eagle-eye view, the document is fairly wonky and detailed: concerned with very practical matters and specific recommendations that could have come from academia, or a secular background — underscoring just how much Leo may hope it can provide guidance for leaders and individuals, as opposed to remaining siloed to the intellectual class. So as this technology continues to develop, the pope and the church want to help shape it. They want the faithful to be reminded that whatever AI offers is not reality, not personhood, and not God. It is a tool that should not dominate or determine the lives of its users. And it should not replace the role of the Church in teaching morality and ethics.

For the greater secular world, the Church wants to remind the public that they should have a say in how AI shapes their world; they should not allow business and tech leaders to define the terms of existence through their machines; and that they have a powerful ally in the Roman Catholic Church in the effort to preserve human dignity in the face of unprecedented technological change.