You must circumcise the flesh of your foreskin to serve as a sign of the covenant between Me and you.
"We cannot do this thing," they said to them. "Giving our sister to an uncircumcised man is a disgrace to us.
So Zipporah took a flint, cut off her son's foreskin, and threw it at Moses' feet. Then she said, "You are a bridegroom of blood to me!"
The flesh of his foreskin must be circumcised on the eighth day.
"When you come into the land and plant any kind of tree for food, you are to consider the fruit forbidden. It will be forbidden to you for three years; it is not to be eaten.
Therefore, circumcise your hearts and don't be stiff-necked any longer.
1 Samuel 18:25
Then Saul replied, "Say this to David: 'The king desires no other bride-price except 100 Philistine foreskins, to take revenge on his enemies.' " Actually, Saul intended to cause David's death at the hands of the Philistines.
2 Samuel 3:14
Then David sent messengers to say to Ish-bosheth son of Saul, "Give me back my wife, Michal. I was engaged to her for the price of 100 Philistine foreskins."
Circumcise yourselves to the Lord; remove the foreskin of your hearts, men of Judah and residents of Jerusalem. Otherwise, My wrath will break out like fire and burn with no one to extinguish [it] because of your evil deeds.
"The days are coming"-the Lord's declaration-"when I will punish all the circumcised yet uncircumcised:
If any male is not circumcised in the flesh of his foreskin, that man will be cut off from his people; he has broken My covenant."
Then Abraham took his son Ishmael and all the slaves born in his house or purchased with his money-every male among the members of Abraham's household-and he circumcised the flesh of their foreskin on that very day, just as God had said to him.
1 Samuel 18:27
David and his men went out and killed 200 Philistines. He brought their foreskins and presented them as full payment to the king to become his son-in-law. Then Saul gave his daughter Michal to David as his wife.