Charles Ellicott Commentary Philemon 1:4

"I thank my God always, making mention of thee in my prayers," — Philemon 1:4 (ASV)

I thank my God . . .—Note the almost exact verbal coincidence with the salutations in Ephesians 1:15-16; Philippians 1:3–4; Colossians 1:3–4, with, however, the natural distinction that this is briefer and simpler in style.