Genesis 17:14
But if any male is not circumcised, he will be cut off from his people; he has broken My covenant.”

Exodus 12:48
If a foreigner resides with you and wants to celebrate the LORD’s Passover, all the males in the household must be circumcised; then he may come near to celebrate it, and he shall be like a native of the land. But no uncircumcised man may eat of it.

Leviticus 12:3
And on the eighth day the flesh of the boy’s foreskin is to be circumcised.

Joshua 5:2-9
At that time the LORD said to Joshua, “Make flint knives and circumcise the sons of Israel once again.” / So Joshua made flint knives and circumcised the sons of Israel at Gibeath-haaraloth. / Now this is why Joshua circumcised them: All those who came out of Egypt—all the men of war—had died on the journey in the wilderness after they had left Egypt. ...

1 Samuel 18:25-27
Saul replied, “Say to David, ‘The king desires no other dowry but a hundred Philistine foreskins as revenge on his enemies.’” But Saul intended to cause David’s death at the hands of the Philistines. / When the servants reported these terms to David, he was pleased to become the king’s son-in-law. Before the wedding day arrived, / David and his men went out and killed two hundred Philistines. He brought their foreskins and presented them as payment in full to become the king’s son-in-law. Then Saul gave his daughter Michal to David in marriage.

2 Samuel 3:14
Then David sent messengers to say to Ish-bosheth son of Saul, “Give me back my wife, Michal, whom I betrothed to myself for a hundred Philistine foreskins.”

1 Kings 11:1-2
King Solomon, however, loved many foreign women along with the daughter of Pharaoh—women of Moab, Ammon, Edom, and Sidon, as well as Hittite women. / These women were from the nations about which the LORD had told the Israelites, “You must not intermarry with them, for surely they will turn your hearts after their gods.” Yet Solomon clung to these women in love.

Nehemiah 13:23-27
In those days I also saw Jews who had married women from Ashdod, Ammon, and Moab. / Half of their children spoke the language of Ashdod or of the other peoples, but could not speak the language of Judah. / I rebuked them and called down curses on them. I beat some of these men and pulled out their hair. Then I made them take an oath before God and said, “You must not give your daughters in marriage to their sons or take their daughters as wives for your sons or for yourselves! ...

Ezekiel 44:7-9
In addition to all your other abominations, you brought in foreigners uncircumcised in both heart and flesh to occupy My sanctuary; you defiled My temple when you offered My food—the fat and the blood; you broke My covenant. / And you have not kept charge of My holy things, but have appointed others to keep charge of My sanctuary for you.’ / This is what the Lord GOD says: No foreigner uncircumcised in heart and flesh may enter My sanctuary—not even a foreigner who lives among the Israelites.

Acts 15:1
Then some men came down from Judea and were teaching the brothers, “Unless you are circumcised according to the custom of Moses, you cannot be saved.”

Acts 15:5
But some believers from the party of the Pharisees stood up and declared, “The Gentiles must be circumcised and required to obey the law of Moses.”

Acts 15:24
It has come to our attention that some went out from us without our authorization and unsettled you, troubling your minds by what they said.

Romans 2:25-29
Circumcision has value if you observe the law, but if you break the law, your circumcision has become uncircumcision. / If a man who is not circumcised keeps the requirements of the law, will not his uncircumcision be regarded as circumcision? / The one who is physically uncircumcised yet keeps the law will condemn you who, even though you have the written code and circumcision, are a lawbreaker. ...

1 Corinthians 7:18-19
Was a man already circumcised when he was called? He should not become uncircumcised. Was a man still uncircumcised when called? He should not be circumcised. / Circumcision is nothing and uncircumcision is nothing. Keeping God’s commandments is what counts.

Galatians 2:3-5
Yet not even Titus, who was with me, was compelled to be circumcised, even though he was a Greek. / This issue arose because some false brothers had come in under false pretenses to spy on our freedom in Christ Jesus, in order to enslave us. / We did not give in to them for a moment, so that the truth of the gospel would remain with you.