# What is a context window in AI?

> How much text an AI model can consider at once, including your question, earlier conversation, and any documents provided.

Source: https://www.lumin.faith/christian-ai-glossary/context-window
By Andrew Kittridge · November 10, 2026

## Why it matters for Christians

When a long conversation exceeds it, the model can lose track of what was said earlier, including your instructions.

## What to do

In a long chat, repeat your key instructions, such as “quote the verse and give the reference,” or start a new conversation. Paste the passage you are studying so the AI answers from the text in front of it.

## Related words

- [Prompt](https://www.lumin.faith/christian-ai-glossary/prompt.md): The instructions or question you give an AI.
- [Grounding](https://www.lumin.faith/christian-ai-glossary/grounding.md): Giving a model real source text to answer from, such as Bible passages or church documents, instead of relying on memory alone.
- [Large language model](https://www.lumin.faith/christian-ai-glossary/large-language-model.md): An AI model trained on vast amounts of text to predict likely next words. It powers ChatGPT, Claude, Gemini, and most Christian chat apps.

Every word: [Christian AI glossary](https://www.lumin.faith/christian-ai-glossary.md)