Genesis 17:11
And you shall circumcise the flesh of your foreskin. And it shall be a token of the covenant between Me and you.
Romans 4:11
And he received a sign of circumcision, a seal of the righteousness of the faith while still uncircumcised; so that he might be the father of all those believing through uncircumcision, for righteousness to be imputed to them also;
Acts 7:8
And He gave him the covenant of circumcision. And so Abraham fathered Isaac and circumcised him the eighth day. And Isaac fathered Jacob, and Jacob the twelve patriarchs.
Exodus 4:25
And Zipporah took a sharp stone, and cut off the foreskin of her son, and threw it at his feet, and said, Surely a bloody husband you are to me.
Exodus 12:48
And when a stranger shall stay with you, and desires to keep the Passover to Jehovah, let all his males be circumcised, and then let him come near and keep it. And he shall be as one that is born in the land. And no uncircumcised person shall eat of it.
Deuteronomy 10:16
Therefore, circumcise the foreskin of your heart, and be no longer stiff-necked.
Joshua 5:3
And Joshua made sharp knives and circumcised the sons of Israel at the hill of the foreskins.
1 Samuel 18:25-27
And Saul said, You shall say this to David, The king does not desire any dowry except 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 my wife Michal, whom I betrothed to me for a hundred foreskins of the Philistines.