What's Your Boast?
Gal 6:13,14 Not even those who are circumcised obey the law, yet they want you to be circumcised that they may boast about your flesh. May I never boast except in the cross of our Lord Jesus Christ, through which the world has been crucified to me, and I to the world.
The circumcision break the very spirit of the law. Hypocrisy is common among legalists. Jesus pointed this out in Matthew 23:13-33, as did Paul in Romans 2:17-24.
The circumcision was looking for an endorsement by the Galatian Christians. But from the beginning of this epistle Paul noted that he sought no such endorsement, not even from the apostles. Rather from personal conviction he preached the cross of Christ - the significance of Christ's death, burial, and resurrection, which brings salvation. Thus he likewise said to the Corinthians
"When I came to you, brothers, I did not come with eloquence or superior wisdom as I proclaimed to you the testimony about God. For I resolved to know nothing while I was with you except Jesus Christ and him crucified." 1Cor 2:1,2