The Pope, the Algorithm, and the Muscle That Atrophies: AI Through Catholic Eyes
The Vatican is deploying artificial intelligence in St. Peter's Basilica. The Pope is warning priests not to let it write their homilies. Both of these things are happening at the same time — and the tension between them is the most important thing Catholics need to understand about AI.
In February 2026, two stories emerged from Rome within days of each other.
On February 16, the Vatican announced "Lara" — an AI-powered translation system installed at St. Peter's Basilica. Pilgrims can now scan a QR code and receive real-time translations of papal liturgies in 60 languages. Built by Translated and Carnegie-AI, the system makes the universal Church more accessible than at any point in its 2,000-year history.
Three days later, on February 19, Pope Leo XIV stood before a gathering of priests and delivered a warning: Stop using ChatGPT to write your homilies.
His words were precise:
"Like all the muscles in the body, if we do not use them, they die."
The Pope — the first from the Americas, a man who chose his name to invoke Leo XIII and Rerum Novarum — was not making a Luddite argument. He was making a deeply Catholic one. The problem is not the technology. The problem is what happens to the person who stops exercising the faculty the technology replaces.
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The Muscle Atrophy Problem
Pope Leo XIV did not say AI is evil. He did not say it has no place in the Church. He said something far more nuanced: "AI will never be able to share the faith."
This is a statement about the nature of evangelization, not the nature of technology. Sharing the faith is a human act. It requires encounter, vulnerability, the particular texture of one person's experience meeting another person's need. A homily written by ChatGPT may be grammatically flawless. It may even be theologically correct. But it was not born from the priest's prayer, his struggle with the text, his knowledge of his parishioners' suffering. It is a muscle that was never flexed.
The analogy is medical. Astronauts who spend months in zero gravity return to Earth with muscles that have atrophied — not because the muscles were injured, but because they were not used. The body is efficient: what it does not need, it discards.
The same is true of the mind. The same is true of the soul.
When a priest outsources his homily to an algorithm, he does not just save time. He loses the wrestling. He loses the hours in the text where the Holy Spirit works through confusion and frustration and sudden clarity. He loses the thing that makes the homily his — the thing that makes it alive.
And the congregation can tell. They may not be able to articulate why a homily feels hollow, but they feel it. The difference between a sermon born from prayer and one generated by a language model is the difference between a handwritten letter and a form email. Both contain words. Only one contains a person.
Rerum Novarum for the Algorithm Age
Pope Leo XIV's choice of papal name was not accidental. When he addressed the Cardinals on May 10, 2025, he explained:
"I chose the name Leo... mainly because of Pope Leo XIII."
Leo XIII published Rerum Novarum in 1891 — the encyclical that defined the Church's response to the Industrial Revolution. It addressed the explosive growth of factory labor, the exploitation of workers, the moral implications of a technology (industrial machinery) that was reshaping every aspect of human life.
The parallels to 2026 are not subtle. Artificial intelligence is doing to cognitive labor what the steam engine did to physical labor. It is not a tool like a hammer or a spreadsheet — something that amplifies what you already do. It is a replacement engine. It can write, translate, summarize, analyze, diagnose, compose, and create. The question is not whether it can do these things. It can. The question is what happens to the humans who let it.
Rerum Novarum did not reject industrialization. It rejected the exploitation that came with it. It insisted that technology must serve human dignity, not erode it. Pope Leo XIV is making the same move with AI: the Church does not reject the tool. It insists on the primacy of the person using it.
This is the Catholic position, and it is the only coherent one. Neither the technophiles who want to automate everything nor the Luddites who want to ban everything have a framework for the actual problem, which is moral: How do we use power without losing ourselves?
The Church has 2,000 years of practice answering exactly that question.
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Distribution vs. Creation: Where the Line Falls
The Vatican's own actions draw the line with remarkable clarity.
Lara — the translation system in St. Peter's — is AI used for distribution. It takes something that already exists (the Holy Father's words, spoken in one language) and makes it accessible to more people. It does not create. It transmits. It is infrastructure — a bridge, not a destination.
This is exactly how the Church has always adopted technology. The printing press did not write Scripture. It distributed it. Radio did not compose papal addresses. It broadcast them. The Vatican website did not create the Catechism. It made it searchable.
AI-as-distribution is not just acceptable. It is an act of evangelization. When a pilgrim from Vietnam can follow a papal liturgy in real time, in her own language, without a human translator — that is the universal Church becoming more universal. That is technology serving the mission.
But AI-as-creation — AI that replaces the human act of thinking, praying, wrestling with truth — that is where the atrophy begins. And it is not limited to homilies.
A catechist who uses ChatGPT to generate lesson plans stops thinking about what her students actually need. A parish director who uses AI to write fundraising appeals stops listening to the stories of the people he is asking others to support. A Catholic business owner who automates every customer interaction stops knowing his customers.
The line is simple: Use AI to reach more people. Do not use it to replace the people doing the reaching.
Tools That Respect the Line
Not all AI tools are created equal. Two in particular have been built by Catholics, for Catholics, with this distinction firmly in mind.
Magisterium AI
Launched in July 2023 by Matthew Sanders and the team at Longbeard, Magisterium AI draws on more than 29,000 Catholic texts — encyclicals, council documents, catechisms, papal addresses, the writings of the Church Fathers. When you ask it a question, it does not generate an opinion. It retrieves and synthesizes what the Magisterium has actually taught, with citations.
This is AI-as-distribution in its purest form. The Church has produced an enormous body of teaching over two millennia. Almost no one has read all of it. Magisterium AI makes that teaching searchable, accessible, and citable — without replacing the authority of the source.
Available at magisterium.com for $3.99/month.
Truthly
Launched on July 3, 2024, Truthly was co-founded by Matt Fradd (host of Pints with Aquinas) and Jacob Ciccarelli. It is a Catholic AI assistant that has been downloaded over 100,000 times.
Where Magisterium AI focuses on official Church teaching, Truthly aims to be a faithful Catholic companion for everyday questions — moral theology, Scripture, practical guidance. It is designed to give answers consistent with Catholic teaching, not the consensus of the internet.
Both tools represent the right use of AI: they expand access to truth. They do not generate it.
What This Means for Your Family
The muscle atrophy problem is not just a clerical concern. It is a household one.
When your children use AI to write their essays, they do not just skip the assignment. They skip the thinking the assignment was designed to produce. The essay was never the point. The struggle was the point — the process of organizing thoughts, finding words, discovering what you actually believe by trying to articulate it.
When a family uses AI to plan every meal, manage every schedule, draft every email, and answer every question, they gain efficiency. They lose the small frictions that produce competence, creativity, and character. Frictions are not bugs. They are features.
Catholic families should ask a simple question about every AI tool they adopt: Does this help us do more of what matters, or does it help us avoid what matters?
A tool that translates a papal audience into your language helps you do more of what matters. A tool that does your teenager's theology homework helps them avoid it. The technology is the same. The application is opposite.
What This Means for Your Parish
Parishes are already using AI in ways both visible and invisible. Bulletin design, social media scheduling, website copy, event planning — these are all tasks where AI can multiply a small team's output.
And that is fine. A parish secretary who uses AI to format the bulletin is not atrophying. She is being efficient with administrative work so she can spend more time on pastoral work. That is distribution. That is infrastructure.
But the moment AI starts writing the pastor's reflections, composing the RCIA curriculum, or drafting the bereavement ministry's letters — the moment it replaces the human encounter that is the actual ministry — the parish has crossed the line.
Parishes should adopt AI aggressively for logistics and cautiously for ministry. Automate the schedule. Do not automate the encounter.
What This Means for Catholic Businesses
Here is where the practical rubber meets the theological road.
Catholic business owners operate in a competitive economy. Their secular competitors are adopting AI at breakneck speed — automating customer service, generating marketing content, optimizing pricing, streamlining operations. A Catholic business that refuses to adopt any AI will fall behind. A Catholic business that adopts it uncritically will lose what makes it Catholic.
The framework is the same one the Vatican is using:
Adopt AI for distribution and operations. Preserve the human element for relationships and mission.
Concretely, this means:
- Use AI for inventory, scheduling, accounting, and logistics. These are infrastructure tasks. Automating them frees you to spend more time with customers and employees.
- Use AI to reach more people. Better search, better discoverability, better translation, better accessibility. If AI helps a Catholic business in San Antonio serve a customer in Monterrey, that is evangelization through commerce.
- Do not use AI to replace the personal touch. The Catholic business owner who knows his customers' names, who asks about their families, who closes on Holy Days of Obligation — that is the irreplaceable thing. That is the muscle. Do not let it atrophy.
- Invest in better tools and systems. The businesses that will thrive in the AI economy are not the ones that resist it and not the ones that surrender to it. They are the ones that use it to become more human, not less. Better tools for managing relationships. Better systems for tracking what your customers actually need. Better infrastructure that lets you spend less time on paperwork and more time on people.
The Catholic business has a competitive advantage that no algorithm can replicate: it is run by a person who believes that every customer is made in the image of God. AI cannot believe that. It cannot act on it. It can only help the person who does.
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The Church Has Seen This Before
The Catholic Church is the oldest continuously operating institution in the Western world. It has survived the fall of Rome, the printing press, the Reformation, the Enlightenment, the Industrial Revolution, the atomic age, and the internet.
It will survive AI.
But how it survives — and what it preserves in the process — depends on whether Catholics understand the distinction Pope Leo XIV is drawing. The technology is not the enemy. The atrophy is.
In 1891, Leo XIII looked at the factory floor and said: The worker is not a machine. He has dignity. Technology must serve that dignity.
In 2026, Leo XIV looks at the algorithm and says the same thing: The person is not replaceable. The encounter is not automatable. The muscle must be used, or it dies.
AI as TIME's Person of the Year. The Pope as the voice insisting that personhood still matters more than productivity. The Vatican deploying AI in its own basilica while warning against its misuse from the same pulpit.
This is not a contradiction. It is Catholicism doing what it has always done: holding the tension between the world's power and the soul's primacy. Using the tools of the age without being used by them.
The question for every Catholic — every parent, every pastor, every business owner — is simple:
Are you using AI to reach more people? Or are you using it to avoid being one?
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Sources: Pope Leo XIV, Address to Cardinals, May 10, 2025, Pope Leo XIV, Address to Priests on AI and Homilies, February 19, 2026, Vatican "Lara" Translation System, February 16, 2026, Magisterium AI, Truthly AI, Leo XIII, Rerum Novarum, 1891, Discover Catholic Business