And ye shall circumcise the flesh of your foreskin; and that shall be a sign of the covenant between me and you.
and said to them, We cannot do this, to give our sister to one that is uncircumcised; for that were a reproach to us.
Then Zipporah took a stone and cut off the foreskin of her son, and cast it at his feet, and said, A bloody husband indeed art thou to me!
And on the eighth day shall the flesh of his foreskin be circumcised.
And when ye come into the land and plant all manner of trees for food, then ye shall count its fruit as uncircumcised, three years shall it be uncircumcised unto you: it shall not be eaten of;
Circumcise then the foreskin of your heart, and stiffen your neck no more.
1 Samuel 18:25
And Saul said, Thus shall ye say to David: The king does not desire any dowry, but a hundred foreskins of the Philistines, to be avenged of the king's enemies. But Saul thought to make David fall by the hand of the Philistines.
2 Samuel 3:14
And David sent messengers to Ishbosheth Saul's son, saying, Deliver me my wife Michal, whom I espoused to me for a hundred foreskins of the Philistines.
Circumcise yourselves for Jehovah, and take away the foreskins of your heart, ye men of Judah and inhabitants of Jerusalem; lest my fury come forth like fire and burn, and there be none to quench it, because of the evil of your doings.
Behold, days are coming, saith Jehovah, when I will visit all them that are circumcised with the uncircumcised;
And the uncircumcised male who hath not been circumcised in the flesh of his foreskin, that soul shall be cut off from his peoples: he hath broken my covenant.
And Abraham took Ishmael his son, and all who were born in his house, and all who were bought with his money every male among the people of Abraham's house and circumcised the flesh of their foreskin on that same day, as God had said to him.
1 Samuel 18:27
when David arose and went, he and his men, and smote of the Philistines two hundred men; and David brought their foreskins, and they delivered them in full to the king, that he might be the king's son-in-law. And Saul gave him Michal his daughter as wife.