Paul was determined to illustrate with his life the truth about freedom in Christ, that he was as unified with them in Spirit and in God’s word as he had always been.
God was creating a new humanity – He was expanding the parameters of His chosen people to include all those who put their faith in Jesus. They would die with Christ and be born to new life, as a new person, a part of a new race of people who were all deeply connected to each other as brothers and sisters, beloved children of God.
These divisions are pretty sharp. It’s hard to know how to keep integrity and still live koinonia with our brothers and sisters in the Lord whom we sharply disagree with.