I have studied all arguments through the years and find them unreasonable. The epistle contains Paul’s classic closing greeting, “Grace…be with you…” as he stated explicitly in 2 Thessalonians 3:17-18 and as implied in 1 Corinthians 16:21-24 and Colossians 4:18. This closing greeting is included at the end of each of Paul’s letters. Eusebius wrote that Paul omitted his name because he, the Apostle to the Gentiles, was writing to the Jews – this is more than sufficient evidence Authorship by Peter has weak proof