Then Abraham took his son Ishmael and all his slaves, whether born in his house or acquired with his money—every male among the members of Abraham’s household—and he circumcised the flesh of their foreskins on that same day, as God had told him to do.
But only on this condition will the men agree to live with us and form one people with us: that every male among us be circumcised as they themselves are.
If any alien residing among you would celebrate the Passover for the Lord, all his males must be circumcised, and then he may join in its celebration just like the natives. But no one who is uncircumcised may eat of it.
Be circumcised for the Lord, remove the foreskins of your hearts, people of Judah and inhabitants of Jerusalem; Or else my anger will break out like fire, and burn so that no one can quench it, because of your evil deeds.
Then he gave him the covenant of circumcision, and so he became the father of Isaac, and circumcised him on the eighth day, as Isaac did Jacob, and Jacob the twelve patriarchs.
It is those who want to make a good appearance in the flesh who are trying to compel you to have yourselves circumcised, only that they may not be persecuted for the cross of Christ.
Therefore, remember that at one time you, Gentiles in the flesh, called the uncircumcision by those called the circumcision, which is done in the flesh by human hands,
The Lord, your God, will circumcise your hearts and the hearts of your descendants, so that you will love the Lord, your God, with your whole heart and your whole being, in order that you may live.
This was the reason for the circumcision: Of all the people who had come out of Egypt, every male of military age had died in the wilderness during the journey after they came out of Egypt.