Paul was the main writer of letters (epistles) in the New Testament.
That would be the Apostle Paul who is commonly credited with 14 works.
Luke was a unique writer in the New Testament as he was neither an apostle, evangelist, or strict theologian, but rather a physician.
Paul.
The 13th letter in the new testament , written by Paul is to-the Hebrews.
JESUS
Paul.
The two parts are the Old Testament and the New Testament.
No. It is in New Testament
Matthew, Mark, Luke, John, Acts, and Revelation are the books that are not letters/epistles in the New Testament.
The word epistle means in letter form. most of the Epistles written in the New Testament were written by Paul.
The Epistle of James
There are 14 letters or books written by Paul. 13 of the letters mention he is the writer and the other letter or book of Hebrews is widely accepted that he wrote that also.