DID YOU KNOW?
The answer
Thirteen — from Romans through Philemon. (Hebrews was once counted a fourteenth, but it names no author and is no longer grouped with Paul's.)
Why it’s interesting
That's nearly half the New Testament's 27 books under one name, which is why Paul shapes so much Christian thought. Whether he personally wrote all thirteen is a separate question scholars take up in more depth.
Scholarly consensus
You can know the Bible.
Not just the stories, but the history, authorship, and scholarship behind it.