The mention of Onesimus is one factor.Ben C. Smith wrote: ↑Tue Sep 26, 2017 3:43 pmI would be interested in an argument against the authenticity of Philemon. Does it have something to do with the letter being a possible letter of recommendation for a certain bishop named Onesimus?Jax wrote: ↑Tue Sep 26, 2017 3:31 pmI used to assume that Paul had written seven authentic letters: 1 Corinthians, 2 Corinthians, Galatians, 1 Thessalonians, Philippians, Romans and Philemon. But further research on this subject has convinced me that Philemon is rather part of the pseudepigraphy of Ephesians and Colossians.
I don't have my sources at hand but will be happy to supply them to you if you, or anyone here, would like them.
I am away from my source material right now but will give you a fuller accounting as soon as I can.
Jax