Then Zipporah, his wife, took a sharp stone, cut off the foreskin of her son, and touched Moses' feet with it. Because of the rite of circumcision she said to Moses, "You are a husband of blood to me." And so the LORD spared Moses' life.

So Joshua did as the LORD had commanded, and he circumcised the Israelites at a place called Circumcision Hill.

and Saul ordered them to tell David: "All the king wants from you as payment for the bride are the foreskins of a hundred dead Philistines, as revenge on his enemies." (This was how Saul planned to have David killed by the Philistines.)

David and his men went and killed two hundred Philistines. He took their foreskins to the king and counted them all out to him, so that he might become his son-in-law. So Saul had to give his daughter Michal in marriage to David.

And David also sent messengers to Ishbosheth to say, "Give me back my wife Michal. I paid a hundred Philistine foreskins in order to marry her."

Then God gave to Abraham the ceremony of circumcision as a sign of the covenant. So Abraham circumcised Isaac a week after he was born; Isaac circumcised his son Jacob, and Jacob circumcised his twelve sons, the famous ancestors of our race.

He was circumcised later, and his circumcision was a sign to show that because of his faith God had accepted him as righteous before he had been circumcised. And so Abraham is the spiritual father of all who believe in God and are accepted as righteous by him, even though they are not circumcised.