The Substitution Effect: When AI Replaces Your Bible, Your Prayers, or Your Friends

By Mark Sentell · September 19, 2026 · 2 min read ·

Rows of men at telegraph desks in a post office.
Telegraph section of the post office, Adelaide, about 1915. South Australian Government Photographer. CC0, via Wikimedia Commons.

Nobody decides to replace their Bible reading with a chatbot. It happens one convenient choice at a time.

You have a question about a passage, so you ask AI instead of reading the chapter around it. You’re anxious at night, so you type it out to an assistant instead of praying. You’re wrestling with a temptation, and a chatbot feels safer than calling a brother who might ask follow-up questions.

Each choice is small. Over a year, they add up to a different kind of spiritual life.

What substitution looks like

Our church’s AI policy names this the substitution effect, and asks our people to watch for it. Here are some signs:

  • Bible reading becomes Bible asking. You know what passages are “about” but haven’t read them.
  • Prayer becomes processing. You talk things through with an AI and feel better, but you never actually talked to God.
  • Friends become optional. The chatbot is always available, never judgmental, never busy. Real people are inconvenient by comparison.
  • Answers replace wrestling. You get the summary and skip the struggle that would have changed you.

Why it’s subtle

Technology that serves us well is easy to welcome. And AI often does serve us well. That’s what makes substitution hard to see. The question isn’t “Is this tool good?” It’s “What is this tool standing in for?”

I wrote earlier about accountability software: it can send a report, but it can’t give your account. AI has the same limit everywhere in the spiritual life. It can produce words about God. It can’t do the knowing of God for you.

The things that can’t be outsourced

“Be still, and know that I am God” (Psalm 46:10). Stillness is the opposite of a quick answer.

Some things are meant to be slow, and meant to be done by you:

  • Reading Scripture in context, at length, even when it’s confusing.
  • Praying with your own words, including the stumbling ones. (More on walking with God between the prayers.)
  • Confessing to a real person who knows you.
  • Being known by a few brothers or sisters who can see what you hide.

A simple self-check

Once a month, ask yourself:

  1. Did I ask AI anything this month that I should have brought to God first?
  2. Did I ask AI anything I should have brought to a friend?
  3. Have I read more about the Bible than in it?
  4. Is there anything I’m telling a chatbot that no human in my life knows?

That fourth question matters most. If the only one who knows your struggle is a machine, you aren’t being helped. You’re being kept company in the dark.

Use the tool for tool things. Bring your soul to God and to his people.


I help churches think through technology and discipleship, from AI policy to teaching congregations to use these tools wisely. I’m a pastor with more than twenty years in business and technology. Here’s how I work.

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