And he gave him the covenant of circumcision, and so he begot Isaac, and circumcised him the eighth day; and Isaac begot Jacob; and Jacob the twelve patriarchs.
For which cause be mindful that you, being heretofore Gentiles in the flesh, who are called uncircumcision by that which is called circumcision in the flesh, made by hands;
For as many as desire to please in the flesh, they constrain you to be circumcised, only that they may not suffer the persecution of the cross of Christ.
The Lord thy God will circumcise thy heart, and the heart of thy seed: that then mayst love the Lord thy God with all thy heart and with all thy soul, that thou mayst live.
Be circumcised to the Lord, and take away the foreskins of your hearts, ye men of Juda and ye inhabitants of Jerusalem: lest my indignation come forth like fire and burn, and there be none that can quench it: because of the wickedness of your thoughts.
Now this is the cause of the second circumcision: All the people that came out of Egypt that were males, all the men fit for war, died in the desert, during the time of the long going about in the way.
And if any stranger be willing to dwell among you, and to keep the Phase of the Lord, all his males shall first be circumcised: and then shall he celebrate it according to the manner. And he shall be as he that is born in the land: but if any man be uncircumcised, he shall not eat thereof.
And Abraham took Ismael his son, and all that were born in his house; and all whom he had bought, every male among the men of his house. And he circumcised the flesh of their foreskin forthwith the very same day, as God had commanded him.