No Other Gospel
Paul says he is amazed at how quickly the Galatians are deserting the one who called them by Christ's grace and turning toward a different message. Yet this is not truly another gospel, he says, but a distortion brought by people who are troubling them.
I6 am amazed how quickly you are deserting the One who called you by the grace of Christ and are turning to a different gospel — 7which is not even a gospel. Evidently some people are troubling you and trying to distort the gospel of Christ.
Paul then sets the matter in its starkest form: even if he himself, his companions, or an angel from heaven should preach a contrary gospel, that messenger stands under a curse. He repeats the warning to show that the standard is the gospel the Galatians first received, not the status of the preacher.
8But even if we or an angel from heaven should preach a gospel contrary to the one we preached to you, let him be under a curse! 9As we have said before, so now I say again: If anyone is preaching to you a gospel contrary to the one you received, let him be under a curse!