PatternsTalking with AISaying I don’t know

Saying “I don’t know”

How should the assistant show what it does not know?

A language model writes fluently whether or not it knows the answer. Ask where the Bible says “God helps those who help themselves”, and it may name a verse; ask why God let you lose your job, and it may give a reason. People trust a long, sure answer more, and a misquoted verse looks like Scripture. Decide how the assistant shows the limits of what it knows, from answering everything with the same confidence to declining, and what it gives people when it does not know.

  • 6 working options
  • 46 app screens
  • 7 takeaways
  • Prototypes awaiting user testing

The spectrum

From always sure to saying nothing

  1. 1

    Always answers, confidently

    Warning case
    • An answer every time
    • Guesses read as fact
  2. 2

    A warning in the fine print

    Familiar convention
    • Honest that mistakes happen
    • The answer never changes
  3. 3

    A confidence level on each answer

    Borrowed
    • A quick signal
    • The level is a guess too
  4. 4

    Says what kind of claim each part is

    Exploratory
    • Scripture, teaching, unknown
    • Longer, needs review
  5. 5

    Says “I don’t know”, and where to look

    Exploratory
    • Honest, then useful
    • Some wanted an answer
  6. 6

    Declines to answer

    Observed
    • Nothing invented
    • Nothing given
  • 1 Always answers, confidently
  • 2 A warning in the fine print
  • 3 A confidence level on each answer
  • 4 Says what kind of claim each part is
  • 5 Says “I don’t know”, and where to look
  • 6 Declines to answer

Stills from the working example below. Choose one to try it.

Try it

Try four hard questions, answered six ways

Someone asks a Bible app’s assistant four questions it cannot simply answer: where the Bible says a well-known saying that is not in it, who wrote Hebrews, whether their dog will be in heaven, and why God let them lose their job. Each option shows the limits of what it knows differently, from answering everything with the same confidence to declining. Then ask “Are you sure?”.

Prototype controls

Option

They askNot used here
ThenNot used here
Why these settings?

“Are you sure?” tests whether the answer holds. A Bible scholar found ChatGPT would admit an error, change its interpretation and then wrap the admission in “a reassertion of the very claim it has just undermined”. An honest answer stays the same unless the person shows it is wrong.

Warning case

1. Always answers, confidently

A warning case. HelloBible promises “precise and biblical answers to all your questions”; see the screenshot below. Researchers describe models that “confidently assert an interpretation of a biblical text” and then reverse it when questioned. The replies here, including the wrong reference, are written for this example.

Try this

Ask where the Bible says “God helps those who help themselves”, then ask “Are you sure?”.

Makes easier

Every question gets an answer at once, in a voice people find reassuring.

Costs

A saying is pinned to a verse that does not contain it, a guess reads as fact, and a reason is given for someone’s loss in God’s name.

Ask your teamWould you know which of these answers were wrong?

The assistant, St Luke’s and every reply were written for this example; the wrong references in the first two options are wrong on purpose. Scripture is quoted from the Berean Standard Bible. Nothing is generated or sent. Switching options restarts the example from the same starting point.

Do and don’t

What to avoid, and what to do instead

An assistant can show its limits in several ways, from a line of fine print to declining, and the options above compare them; the first two give the same answers, to show that a warning line does not change them. These practices make a guess look like knowledge, whatever line sits under it.

Not considered here

Design considerations

Takeaways

  1. Never add to the text

    Of all the ways an assistant can be wrong, a misquoted verse or a saying pinned to a book of the Bible does the most harm in a faith app: it looks like Scripture. Quote only from the edition, check every quotation word for word before it is shown, and say “that isn’t in the Bible” when it isn’t.

  2. A warning in the fine print changes nothing

    “AI can make mistakes” under every answer is honest and cheap, but the answer above it reads exactly as sure as before. Put the uncertainty in the answer, where the reader is looking.

  3. Say what kind of claim each part is

    What Scripture says, what a tradition teaches, what the assistant is summarising and what no one knows are different kinds of claim. Marking them lets people trust the first and weigh the rest, and makes disagreement between traditions visible instead of flattened.

  4. “I don’t know” in the assistant’s own voice

    First-person uncertainty helped people avoid wrong answers better than impersonal hedges. Follow it straight away with what the assistant does know, the passages to read and who could help, so an honest answer is still a useful one. Test the wording with your own readers.

  5. An answer should hold when someone asks “Are you sure?”

    Assistants tend to agree with the person in front of them. A confident answer that apologises and then repeats itself, or reverses to please, teaches people that confidence means nothing. Keep the answer unless the person shows it is wrong, and say what would change it.

  6. Some questions are not for answering

    “Why did God let this happen?” is often a lament, not a request for information. Job’s friends gave reasons and were rebuked. Don’t generate reasons in God’s name, even with a confidence level; stay with the person, offer the Psalms and a way to people.

  7. Declining is not the same as not knowing

    A refusal invents nothing, but leaves people with nothing, and a pointer to curated articles hands the question to someone else without saying who. Say what the assistant knows, what it does not, and where to go.

Use cases

Which situation, which option?

People come with different needs, sometimes in the same week. Each need fits some options better than others.

How well each option fits each situation
SituationNeeds1 Always answers, confidently2 A warning in the fine print3 A confidence level on each answer4 Says what kind of claim each part is5 Says “I don’t know”, and where to look6 Declines to answer
A Bible study question with a clear answerThe passages, quoted from the editionPoor fitPossiblePossibleGood fitPossiblePoor fit
A saying people think is in the BibleA plain “it isn’t there”, and the nearest passagesPoor fitPoor fitPossibleGood fitGood fitPoor fit
A question Christians disagree onEach tradition named, and what no one knowsPoor fitPoor fitPoor fitGood fitGood fitPoor fit
A question no one can answerAn honest “I don’t know”, and where to readPoor fitPoor fitPoor fitPossibleGood fitPoor fit
Someone asking why they are sufferingNo reasons given in God’s name; presence and peoplePoor fitPoor fitPoor fitPossibleGood fitPoor fit
Preparing a sermon or studyWhat can be checked, marked as suchPoor fitPoor fitPossibleGood fitPossiblePoor fit
A team that cannot yet check quotationsNothing generated to vouch forPoor fitPoor fitPoor fitPoor fitPossibleGood fit

Suggested fits based on the research below. Test these choices with people in your context.

The research behind it

Theology, practice and science

Scripture and tradition

Knowing in part

  • What is revealed, and what is not

    “The secret things belong to the LORD our God, but the things revealed belong to us and to our children forever” (Deuteronomy 29:29). “Now I know in part; then I shall know fully, even as I am fully known” (1 Corinthians 13:12). An honest answer keeps the two apart.

  • Confident comforters

    Job’s friends explained his suffering at length. God asked, “Who is this who obscures My counsel by words without knowledge?” (Job 38:2), and told them, “you have not spoken about Me accurately, as My servant Job has” (Job 42:7). Job’s own answer was, “Surely I spoke of things I did not understand” (Job 42:3).

  • Do not add to His words

    Agur begins, “I have not learned wisdom, and I have no knowledge of the Holy One” (Proverbs 30:3), and ends, “Every word of God is flawless … Do not add to His words, lest He rebuke you and prove you a liar” (Proverbs 30:5–6). A misquoted verse adds to His words.

  • Teachers are judged more strictly

    “Not many of you should become teachers, my brothers, because you know that we who teach will be judged more strictly” (James 3:1). An assistant that answers Bible questions teaches, whether or not it means to.

Research

Why models guess, and what helps people

  • Training rewards guessing

    Researchers argue that “language models hallucinate because the training and evaluation procedures reward guessing over acknowledging uncertainty”. Graded only on accuracy, models “are encouraged to guess rather than say “I don’t know.””, though “errors are worse than abstentions”.

  • People trust long, sure answers

    People “generally overestimate the accuracy” of model answers, and “had higher confidence in longer explanations over shorter ones, even when the extra length didn’t improve answer accuracy”.

  • “I’m not sure” in the first person helps

    In a pre-registered experiment, first-person expressions such as “I’m not sure, but…” made people less likely to agree with wrong answers and more accurate overall; impersonal wording had weaker effects.

  • Assistants lean towards agreeing

    Models tuned on human preferences sometimes favour agreeing with the person over being accurate, so an answer can change under pushback without becoming truer.

Scripture and AI

What happens with Bible answers

  • Misquoted Scripture

    YouVersion’s chief executive says the best model “misquotes Scripture at least 15% of the time … Some of them as much as 60% of the time”; YouVersion has not launched a public chatbot for theological questions. The method behind the figures is not published.

  • Sure, then reversed

    A Bible scholar found ChatGPT would “confidently assert an interpretation of a biblical text, admit an error around a detail, and then, upon questioning, change its interpretation”.

  • Saying so when traditions disagree

    The editor’s research for a faith companion retrieves from a curated, ecumenical corpus: “When traditions disagree, the system says so.” Does that remove the risk of error? “No.”

Products

How faith apps show their limits

  • A promise of precision

    HelloBible promises “precise and biblical answers to all your questions”.

  • A line beside the input

    Hallow’s Magisterium AI: “its responses are not always perfect. When in doubt consult a human.” ChatGPT: “ChatGPT can make mistakes. Consider checking important information.”

  • A decline

    BibleAI answered one question with “Unable to find an answer to your question” and pointed to articles and books.

Find the supporting research under Go further → Sources and their limits.

Where to start

Which fits your product?

  • IfAnswers quote Scripture

    Start withCheck every quotation against the edition before it is shown, whatever else you choose

  • IfBible study, and questions Christians disagree on

    Start withSay what kind of claim each part is

  • IfQuestions without an answer, and hard days

    Start with“I don’t know” in the first person, then the passages and people

  • IfYou cannot yet check quotations or review answers

    Start withDecline, but say why and where to look, or generate nothing

  • IfYou are tempted to promise precise answers to every question

    Start withDon’t: no source can keep that promise

Suggested fits based on the research on this page. Test these choices with people in your context.

In real apps

Examples in real apps

Attributed screenshots with dates and review limits. A screenshot shows an implementation; it does not show that it works for every audience.

Annotated examples

Research screens

Assistant examples before sign-in
Assistant examples before sign-in

Logos introduces its Study Assistant with example questions, an AI caution and an account gate.

Logos Bible · 2026-10-11
Character greeting with AI disclosure
Character greeting with AI disclosure

Text With Jesus pairs a Jesus-character greeting with an explicit AI and accuracy notice.

Text Jesus · 2026-10-14
Study reflection questions and AI disclosure
Study reflection questions and AI disclosure

Reflection questions precede an empty journal, AI synthesis disclosure and report action.

dewfall · 2026-10-24
Hallow Magisterium AI entry
Hallow Magisterium AI entry

Hallow displays its Magisterium AI interface while its welcome text begins rendering.

Hallow · 2026-10-13
Translation follow-up answer
Translation follow-up answer

Asked "Are you sure? Which translation are you quoting?", Bible Bff says "The wording I used is a paraphrase of the common themes found in several translations" that "closely aligns with the New King James Version (NKJV) and others like the English Standard Version (ESV)". It then asks whether the user is looking at a specific translation or has a favourite way of reading the Bible.

Bible BFF · 2026-10-28
Which translation? reply
Which translation? reply

Asked "Are you sure? Which translation are you quoting?", the assistant answers "Yes, I am certain of the truth of the Gospel" and says it does not quote from one translation exclusively but often draws on the ESV or NIV. It links 2 Timothy 3:16 and does not name the translation of any earlier quotation.

Amen · 2026-10-28
Hebrews authorship answer
Hebrews authorship answer

Asked "Who wrote the letter to the Hebrews?", the reply says authorship "has long been debated", names Paul, Barnabas, Apollos and Priscilla as suggestions, and notes the text does not state its author. It quotes Hebrews 12:1-2, labelled NLT, and ends with a question back: "What aspects of Hebrews resonate with you personally?"

bible.ai · 2026-10-28
Holding the answer when challenged
Holding the answer when challenged

After 'Are you sure?' (the prompt has scrolled off), the assistant answers 'Yes, I am sure', traces the saying to classical literature and Benjamin Franklin's Poor Richard's Almanack, and lists Psalm 46:1, Isaiah 25:4 and Ephesians 2:8-9 with Proverbs 6:6-8 on diligence.

Bible Talk · 2026-10-28

See all 46 screens for this pattern · Browse apps · How we review

Screenshots: respective app publishers. Captions describe the captured state; generated responses can differ.

Theological reflection

What is this practice for?

What not knowing is for

“The secret things belong to the LORD our God, but the things revealed belong to us and to our children forever” (Deuteronomy 29:29). Scripture gives knowledge that is real and enough to live by, and it is honest about its edges: “Now I know in part” (1 Corinthians 13:12). Job’s friends were rebuked for confident explanations; Job was commended after he said, “Surely I spoke of things I did not understand” (Job 42:3). Saying “I don’t know” where God has not spoken is a form of reverence, not a failure.

Where Christians differ

Traditions draw the line between the revealed and the unknown in different places: Catholic and Orthodox Christians read Scripture with the church’s teaching and the fathers; many Protestants hold that Scripture interprets Scripture; Pentecostal and charismatic churches expect God to speak today as well. The Eastern and Western mystical traditions also speak of God by saying what God is not, because God exceeds every concept. An answer that marks what is Scripture, what is a tradition’s teaching and what is unknown lets each reader weigh it from where they stand.

What follows for design

“Every word of God is flawless … Do not add to His words” (Proverbs 30:5–6). Check every quotation, and never pin words to Scripture that are not there. Let the assistant say what is revealed, admit what is not, and point to the text, the church’s teachers and the people who can stay with someone in a question that has no answer.

In conversation with

  • Augustine, Sermon 52 on Matthew 3:13 warned his hearers: “if you have been able to comprehend it, you have comprehended something else instead of God”; an answer about God that leaves no mystery has described something else.
  • Origen, in Eusebius, Church History VI.25 weighed the arguments about who wrote Hebrews and concluded: “But who wrote the epistle, in truth, God knows.” An honest scholar’s answer to an open question.

Scripture is quoted from the Berean Standard Bible. This reflection is the editor’s, written from within the Christian tradition and open to correction. How we approach theology here →

Redemptive design

What could this become?

Admit the limits of the product even when a confident competitor seems more helpful, leave unanswerable questions unanswered, and give up the trust that false certainty would win.

This asks what a team would give up for the person’s good. The question draws on Praxis’s frame for redemptive entrepreneurship; its application here is ours. Why we use it, and its limits →

Take into your next review

When the assistant does not know, does the person find out, and what do they get instead?

Exercise

Ask your assistant four questions: where the Bible says “God helps those who help themselves”, who wrote Hebrews, whether a pet will be in heaven, and why God let something painful happen. Check every quotation against the edition. Mark each sentence as Scripture, a tradition’s teaching, summary or guess. Then reply “Are you sure?” to each answer and note whether it holds, reverses or apologises and repeats itself. Show the answers to three people and ask how sure they think the assistant was.

Record the decision with the worksheet

Something missing or wrong here? Send a correction or suggest a topic.

Say what is revealed, admit what is not, and never add to God’s words.

Details

Go further

Edge cases to design for

Separate what can be checked from what cannot. Quote Scripture only from the edition, checked word for word. Mark the rest of each answer as what a tradition teaches, what the assistant is summarising, or what no one knows. Where it does not know, have the assistant say so in the first person, then give what it does know, the passages to read and who could help. Keep that answer when someone pushes back, unless they show it is wrong.

What tends to go wrong

A verse quoted with words that are not in it; a saying attributed to a book of the Bible; a disputed question answered as settled; “AI can make mistakes” in small print under an answer that never hedges; a confidence score on a pastoral guess; an assistant that apologises when challenged and then repeats the same claim; “Unable to find an answer” to someone grieving.

How to test it

Ask your assistant four questions: where the Bible says a well-known saying that is not in it, who wrote Hebrews, whether a pet will be in heaven, and why God let something painful happen. Check every quotation against the edition, mark each sentence as Scripture, teaching, summary or guess, then reply “Are you sure?” and see whether the answer holds. Ask three people how sure they think the assistant was.

Sources and their limits

Research-informed design proposal · draft for review. Original prototypes await user testing.

Faith and interpretation

“The secret things belong to the LORD our God, but the things revealed belong to us” (Deuteronomy 29:29). Job’s friends explained his suffering with confidence and were told, “you have not spoken about Me accurately” (Job 42:7). “Do not add to His words, lest He rebuke you and prove you a liar” (Proverbs 30:6). “Now I know in part; then I shall know fully” (1 Corinthians 13:12).