Joshua 5:2
At that time, Yahweh said to Joshua, "Make flint knives, and circumcise again the children of Israel the second time."
Exodus 4:25
Then Zipporah took a flint, and cut off the foreskin of her son, and cast it at his feet; and she said, "Surely you are a bridegroom of blood to me."
Genesis 17:10-14
This is my covenant, which you shall keep, between me and you and your seed after you. Every male among you shall be circumcised.
Deuteronomy 10:16
Circumcise therefore the foreskin of your heart, and be no more stiff-necked.
Deuteronomy 30:6
Yahweh your God will circumcise your heart, and the heart of your seed, to love Yahweh your God with all your heart, and with all your soul, that you may live.
Romans 2:29
but he is a Jew who is one inwardly, and circumcision is that of the heart, in the spirit not in the letter; whose praise is not from men, but from God.
Romans 4:11
He received the sign of circumcision, a seal of the righteousness of the faith which he had while he was in uncircumcision, that he might be the father of all those who believe, though they might be in uncircumcision, that righteousness might also be accounted to them.
Colossians 2:11
in whom you were also circumcised with a circumcision not made with hands, in the putting off of the body of the sins of the flesh, in the circumcision of Christ;