Barnes New Testament Notes

Verse 23. The country of Galatia and Phrygia. He had been over these regions before, preaching the gospel, Ac 16:6

Strengthening. Establishing then by exhortation and counsel. See Barnes "1 Co 1:12".

{d} "Galatia" Ga 1:2 {e} "strengthening" Ac 14:22; 15:32,41