Galatians 6:7-16 NRSV
Do not be deceived; God is not mocked, for you reap whatever you sow. If you sow to your own flesh, you will reap corruption from the flesh; but if you sow to the Spirit, you will reap eternal life from the Spirit. So let us not grow weary in doing what is right, for we will reap at harvest time, if we do not give up. So then, whenever we have an opportunity, let us work for the good of all, and especially for those of the family of faith.
See what large letters I make when I am writing in my own hand! It is those who want to make a good showing in the flesh that try to compel you to be circumcised—only that they may not be persecuted for the cross of Christ. Even the circumcised do not themselves obey the law, but they want you to be circumcised so that they may boast about your flesh. May I never boast of anything except the cross of our Lord Jesus Christ, by which the world has been crucified to me, and I to the world. For neither circumcision nor uncircumcision is anything; but a new creation is everything! As for those who will follow this rule—peace be upon them, and mercy, and upon the Israel of God.
NRSV: New Revised Standard Version