But we believe that we shall be saved through the grace of the Lord Jesus, just as they will.
The Church was in a pickle. A lot of Gentiles were getting interested in the gospel, but Jewish law had insisted on circumcision as the way to enter the covenant since the days of Abraham. So did new Christians have to be circumcised or not? Peter gave the answer when the Church assembled in council and asked for the guidance of the Holy Spirit. Circumcision doesn’t save, it is merely the sign that pointed to the true circumcision of the heart. And that is accomplished by the Holy Spirit of Jesus Christ, not by a knife. With that revelation, the gospel could now go out to the world, which is why all us Gentiles are now “fellow heirs, members of the same body, and partakers of the promise in Christ Jesus through the gospel” (Ephesians 3:6).