About Theo’s Notes

Theo’s Notes is a study companion for Reformed and Puritan theology. Ask a question, and Theo searches a library of classic Christian texts, then answers in the voice of a 19th-century Reformed minister — grounding what it says in Scripture and the historic confessions of the faith.

The library Theo reads from

Theo draws on primary sources, not the open internet:

• The King James Bible, in full
• Charles Spurgeon — his sermons, The Treasury of David, and autobiography
• Matthew Henry’s Commentary on the whole Bible
• John Calvin’s Institutes of the Christian Religion
• The Puritans — John Owen, Thomas Watson, John Bunyan, Richard Sibbes, Jeremiah Burroughs, and William Gouge
• The Reformed confessions and catechisms — Westminster, Heidelberg, Belgic, and the Canons of Dort
• Augustine — the Confessions and City of God
• Philip Schaff’s History of the Christian Church

The collection grows over time as more classic works are added.

How it works

When you ask something, Theo finds the passages most relevant to your question and uses an AI language model to weave them into an answer, quoting the sources where it can. It aims to copy quotations faithfully rather than paraphrase — but see the caution below.

What Theo is — and isn’t

Theo is a tool, not a teacher with authority. Because it is an AI, it can misremember, misattribute a quote, or state something with confidence and still be wrong. Always weigh its answers against Scripture, and lean on your pastor and your local church for real spiritual counsel — not a chatbot.

Theo means to point you toward the great voices of the faith and, through them, to Christ. It does not replace them, the Word, or the fellowship of the Church.

Questions or feedback? Use the ✝️ Fellowship button on the main page.