Paul asks that, if someone is caught in a transgression, those who are spiritual restore him in a spirit of gentleness, each taking care not to be tempted. Bearing one another's burdens fulfills the law of Christ. Anyone who thinks he is something when he is nothing deceives himself; each must test his own work and will carry his own load. The one who is taught the word must share all good things with the one who teaches.
Then he warns that God is not mocked: whatever one sows, that he will also reap. The one who sows to his flesh will reap corruption from the flesh; the one who sows to the Spirit will reap eternal life from the Spirit. We must not grow weary of doing good, for in due season we will reap if we do not give up, and we must do good to everyone, especially to those of the household of faith.
Paul ends by writing in his own hand, in large letters. Those who compel circumcision want to make a good showing in the flesh and avoid being persecuted for the cross of Christ; they do not even keep the law themselves, but want to boast in the Galatians' flesh. Paul, by contrast, says he will never boast except in the cross of our Lord Jesus Christ, through which the world has been crucified to him and he to the world. Neither circumcision nor uncircumcision counts, but a new creation.
He asks for peace and mercy on those who walk by that rule, and on the Israel of God. Let no one cause him trouble, for he bears on his body the marks of the Lord Jesus. The letter ends with the blessing: the grace of our Lord Jesus Christ be with your spirit, brothers.