Expositor's Bible Commentary Commentary Galatians 1:7

"which is not another [gospel] only there are some that trouble you, and would pervert the gospel of Christ." — Galatians 1:7 (ASV)

Paul now wants to explain or correct his phrase, “a different gospel.” If left without any comment, that phrase might suggest that there are various gospels from which a Christian may choose. This is the opposite of what Paul is saying. So he adds that actually there cannot be another Gospel besides the one that describes God’s way of salvation in Christ. The Gospel is one, and any system of salvation that varies from it is counterfeit.

For the first time now Paul mentions the false teachers, though not by name, presumably because he does not want anyone to think his remarks were originating from a dislike of certain personalities rather than from concern for the truth. He objects to two aspects of the conduct of these teachers: (1) they were perverting the Gospel, and (2) they were troubling the church. These two always go together.