Then David sent messengers to Ishbosheth, the son of Saul, saying, "Restore my wife Michal, whom I espoused to myself for one hundred foreskins of the Philistines."
And if any sojourner will be willing to cross over into your settlement, and to keep the Passover of the Lord, all his males shall first be circumcised, and then he shall celebrate the rite. And he shall be just like a native of the land. But if any man is not circumcised, he shall not eat from it.
For this reason, Zipporah took a very sharp stone, and she circumcised the foreskin of her son, and she touched his feet, and she said, "You are a bloody spouse to me."
And he gave him the covenant of circumcision. And so he conceived Isaac and circumcised him on the eighth day. And Isaac conceived Jacob, and Jacob, the twelve Patriarchs.
For he received the sign of circumcision as a symbol of the justice of that faith which exists apart from circumcision, so that he might be the father of all those who believe while uncircumcised, so that it might also be reputed to them unto justice,