Paul was a wonderful writer as well as a gifted preacher. Not all of the letters attributed to him actually came from his hand, however. Here's a rundown on which ones scholars think Paul wrote—and which ones he didn't. Although opinions vary, this is the consensus among the authors who write on Paul's letters in The Interpreter's One-Volume of Commentary on the Bible.
Written by Paul
Romans
First Corinthians
Second Corinthians
Galatians
Philippians
First Thessalonians
Philemon
Not by Paul
Ephesians
Colossians (perhaps by Paul)
Second Thessalonians
First Timothy
Second Timothy
Titus
Hebrews
