The Letter to the Galatians: The main point
Chapter 1 -
6 I marvel that you are turning away so soon from Him who called you in the grace of Christ, to a different gospel, 7 which is not another; but there are some who trouble you and want to pervert the gospel of Christ. 8 But even if we, or an angel from heaven, preach any other gospel to you than what we have preached to you, let him be accursed. 9 As we have said before, so now I say again, if anyone preaches any other gospel to you than what you have received, let him be accursed. 10 For do I now persuade men, or God? Or do I seek to please men? For if I still pleased men, I would not be a bond-servant of Christ. 11 But I make known to you, brethren, that the gospel which was preached by me is not according to man.
Chapter 2 -
1 Then after fourteen years I went up again to Jerusalem with Barnabas, and also took Titus with me. 2 And I went up by revelation, and communicated to them that gospel which I preach among the Gentiles, but privately to those who were of reputation, lest by any means I might run, or had run, in vain. 3 Yet not even Titus who was with me, being a Greek, was compelled to be circumcised. 4 And this occurred because of false brethren secretly brought in (who came in by stealth to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage), 5 to whom we did not yield submission even for an hour, that the truth of the gospel might continue with you.
11 Now when Peter had come to Antioch, I withstood him to his face, because he was to be blamed; 12 for before certain men came from James, he would eat with the Gentiles; but when they came, he withdrew and separated himself, fearing those who were of the circumcision. 13 And the rest of the Jews also played the hypocrite with him, so that even Barnabas was carried away with their hypocrisy. 14 But when I saw that they were not straightforward about the truth of the gospel, I said to Peter before them all, "If you, being a Jew, live in the manner of Gentiles and not as the Jews, why do you compel Gentiles to live as Jews? 15 We who are Jews by nature, and not sinners of the Gentiles, 16 knowing that a man is not justified by the works of the law but by faith in Jesus Christ, even we have believed in Christ Jesus, that we might be justified by faith in Christ and not by the works of the law; for by the works of the law no flesh shall be justified. I do not set aside the grace of God; for if righteousness comes through the law, then Christ died in vain."
The main point of Paul's letter to the Galatians was to correct them from the behavior of false brethren who were trying to bring these Gentile Christians into bondage by getting them to be Circumcised and keep Moses law.
Look at the language that Paul uses -
6 I marvel that you are turning away so soon from Him who called you in the grace of Christ, to a different gospel...
Paul called this "turning away from Him".
Paul called this "a different Gospel".
Paul called this "perverting the Gospel".
But even if we, or an angel from heaven, preach any other gospel to you than what we have preached to you, let him be accursed. As we have said before, so now I say again, if anyone preaches any other gospel to you than what you have received, let him be accursed.
Paul said those who preach this Gospel are cursed.
Paul said those who do this are trying to bring you into bondage.
Paul's disciple Titus, who was Gentile was not Circumcised.
JLB