1
Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began,
Attribution contested
The letter opens by naming Paul and the catalogue records that, because it is the only claim the text itself makes. Authorship is disputed: on vocabulary, style and the situation it addresses, many scholars hold it was written in Paul's name by someone in his circle after his death. That was an ordinary practice at the time and is not the same thing as forgery — but it does mean the name on the letter is not settled.