I can prep a sermon in half the time. The sources are real, the citations check out, and I actually learn something new every session.
David M.
Senior Pastor, Presbyterian Church
Ask anything theological in your own words. No prompt engineering required.
Theostack searches a curated library of orthodox theological sources. Not the open internet.
Every claim in the answer is attached to a real, verifiable source. No hallucinated quotes.
The library
2,200
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Scripture
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Our approach
Faithful theology is rooted in Scripture, shaped by the historic creeds, and refined through centuries of careful reflection by the church. Theostack is built on that conviction.
We stand within the broad stream of Protestant orthodoxy — affirming the authority and sufficiency of Scripture, the triune nature of God, and the historic confessions that have guided the church through every generation.
A worked example
How did Augustine read Genesis 1?
Theostack
Augustine treats Genesis 1 across multiple registers in De Genesi ad Litteram I.1, distinguishing literal from figurative readings. In Confessiones XII.27 he revisits the same passages to argue that Scripture admits more than one true reading where the text itself is not constraining.
Sources verified
From the field
I can prep a sermon in half the time. The sources are real, the citations check out, and I actually learn something new every session.
David M.
Senior Pastor, Presbyterian Church
I used to toggle between Logos, ChatGPT, and my own notes. Theostack puts it all in one place, and the answers are actually grounded.
James T.
Teaching Pastor, Non-denominational
The voice mode is a game changer. I ask questions while I walk and get real answers from real theologians, not AI guesses.
Nathan C.
Associate Pastor, Baptist Church
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