Tokens, and the predictive text bar

"The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness." — Proverbs 15:2 (KJV)

A useful Christian habit is to translate mysterious terms into familiar ones. The engineers of AI tools use the word token for the small word-pieces a model produces. A token is not a coin and not a key; it is just a chunk of text — sometimes a whole word, sometimes a part of one. When you ask a model a question, it produces one token at a time: the most likely next token, given everything that has come before.

There is an everyday version of this on every modern phone. The little bar above the keyboard that suggests the next word as you type is doing the same thing as an AI model — much smaller, much simpler, but the same shape of work. Predict the next word, given the previous words. An AI model is, in essence, a vastly larger predictive text bar. It can make you a long paragraph because it can keep predicting the next word for thousands of steps in a row. The mechanism is unspectacular. The scale is what surprises us.

Why does this matter for Christian formation? Because the metaphor takes the mystery out of the tool. The predictive text bar on your phone is helpful, sometimes wrong, and never a teacher. A large language model is the same — helpful, sometimes wrong, never a teacher. The Christian household using it well places it in the right drawer mentally and reaches for it for the right tasks.

A small practice: notice your phone's predictive text bar the next time you type a message. See how often it suggests the right word, and how often it suggests something subtly off. That is the AI assistant on your other screen, scaled up. Treat both with the same patient attention.

Lord, give us a quiet understanding of the tools we use. Through Jesus Christ our Lord. Amen.

AI is an aid, never a replacement for Scripture, prayer, or pastoral guidance.