Pope Leo XIV to cast AI as a central moral issue in his first encyclical

Pope Leo XIV has spent his first year as pontiff building a public case that artificial intelligence belongs at the center of Catholic social teaching, and Vatican-linked reporting says that argument is now expected to anchor his first encyclical. Axios reported on May 14 that Leo was expected to sign the document as soon as Friday, May 15, and said it would frame AI as the defining moral and labor challenge of a new industrial revolution. Vatican channels had not published the encyclical text by the time those reports appeared, but the Holy See’s own recent speeches and messages show Leo repeatedly tying AI to human dignity, work, truth and peace. ### Why is an encyclical a bigger step than another papal speech? An encyclical is one of the pope’s highest-profile teaching documents, used to set out formal guidance for the global church. That is why the expected document matters more than Leo’s earlier speeches on technology: it would move AI from a recurring theme in remarks and messages into a flagship text of his pontificate, according to Axios. (axios.com) Pope Leo XIV has already used other formal channels to sketch that agenda. In his first address to the College of Cardinals in May 2025, Leo said he chose his name with Leo XIII in mind and said the church must respond to “a new industrial revolution and to the development of artificial intelligence,” invoking the social teaching tradition associated with *Rerum Novarum*. (axios.com) ### What did Leo say at La Sapienza this week? Pope Leo XIV visited Sapienza University of Rome on Thursday, May 14, according to the Vatican calendar and Vatican News coverage of the trip. In that address, Vatican News said, he urged students and faculty to be “artisans of true peace” and linked scientific and technological progress to the need for ethical responsibility. (vaticannews.va) Vatican News said Leo warned that today’s world is marked by conflict and by technologies that can deepen destruction if they are not governed by moral judgment. The user-provided reporting from Axios and AP said he described AI and high-tech weaponry as helping push the world toward a “spiral of annihilation,” a line that fits with his broader recent warnings about war, deterrence and the ethics of technology. Vatican News separately reported in January that Leo had cautioned diplomats against a world seeking peace through force, and in his communications message he said technology must serve the human person, not replace it. (vatican.va) ### Has Leo been talking about AI for a while? January 2026 and earlier Vatican statements show this is not a one-off theme. In his message for the 60th World Day of Social Communications, Leo said technological innovation, especially AI, must serve the human person rather than diminish human dignity, and Vatican News said he raised concerns about fraud, cyberbullying, deepfakes and deceptive chatbots. (vaticannews.va) July 2025 and December 2025 interventions pushed the same line into international governance and education. In a message to the U.N. AI for Good Summit, Leo called for coordinated local and global governance of AI based on the dignity and freedoms of the human person, Vatican News reported. At a December conference on AI and care for the common home, he said younger generations must be helped, not hindered, in their relationship with new technologies. (vaticannews.va) ### Why does labor keep appearing alongside AI? Leo XIII’s 1891 encyclical *Rerum Novarum* made labor, capital and workers’ rights central to modern Catholic social teaching, and Pope Leo XIV has explicitly tied his own name and program to that inheritance. Axios reported that the new encyclical is expected to cast AI as a labor issue as well as a moral one, placing questions about automation, human dignity and the future of work inside that older church framework. (vaticannews.va) That connection is partly an inference from Leo’s own references to a “new industrial revolution” and from Axios’s reporting on the expected text. ### What should readers watch for next? May 15, 2026 was the date cited by Axios for the expected signing of the encyclical, and the most direct place to confirm publication is the Holy See’s official document channels and press office bulletins. The Vatican homepage was carrying Leo’s May 14 Sapienza visit and other daily updates, and a formal release would typically appear through those same Holy See outlets with the text and presentation details. (vaticannews.va) (axios.com)