Genesis 17:5-11

17:5 No longer will your name be Abram. Instead, your name will be Abraham because I will make you the father of a multitude of nations. 17:6 I will make you extremely fruitful. I will make nations of you, and kings will descend from you. 17:7 I will confirm my covenant as a perpetual covenant between me and you. It will extend to your descendants after you throughout their generations. I will be your God and the God of your descendants after you. 17:8 I will give the whole land of Canaan – the land where you are now residing – to you and your descendants after you as a permanent possession. I will be their God.”

17:9 Then God said to Abraham, “As for you, you must keep the covenantal requirement I am imposing on you and your descendants after you throughout their generations. 17:10 This is my requirement that you and your descendants after you must keep: Every male among you must be circumcised. 17:11 You must circumcise the flesh of your foreskins. This will be a reminder of the covenant between me and you.

Deuteronomy 10:16

10:16 Therefore, cleanse your heart and stop being so stubborn!

Deuteronomy 30:6

30:6 The Lord your God will also cleanse your heart and the hearts of your descendants so that you may love him with all your mind and being and so that you may live.

Jeremiah 4:4

4:4 Just as ritual circumcision cuts away the foreskin

as an external symbol of dedicated covenant commitment,

you must genuinely dedicate yourselves to the Lord

and get rid of everything that hinders your commitment to me,

people of Judah and inhabitants of Jerusalem.

If you do not, my anger will blaze up like a flaming fire against you

that no one will be able to extinguish.

That will happen because of the evil you have done.”

Jeremiah 9:26

9:26 That is, I will punish the Egyptians, the Judeans, the Edomites, the Ammonites, the Moabites, and all the desert people who cut their hair short at the temples. I will do so because none of the people of those nations are really circumcised in the Lord’s sight. Moreover, none of the people of Israel are circumcised when it comes to their hearts.”

Romans 2:25-29

2:25 For circumcision has its value if you practice the law, but if you break the law, your circumcision has become uncircumcision. 2:26 Therefore if the uncircumcised man obeys the righteous requirements of the law, will not his uncircumcision be regarded as circumcision? 2:27 And will not the physically uncircumcised man who keeps the law judge you who, despite the written code and circumcision, transgress the law? 2:28 For a person is not a Jew who is one outwardly, nor is circumcision something that is outward in the flesh, 2:29 but someone is a Jew who is one inwardly, and circumcision is of the heart by the Spirit and not by the written code. This person’s praise is not from people but from God.

Romans 4:11-12

4:11 And he received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised, so that he would become the father of all those who believe but have never been circumcised, that they too could have righteousness credited to them. 4:12 And he is also the father of the circumcised, who are not only circumcised, but who also walk in the footsteps of the faith that our father Abraham possessed when he was still uncircumcised.

Colossians 2:11

2:11 In him you also were circumcised – not, however, with a circumcision performed by human hands, but by the removal of the fleshly body, that is, through the circumcision done by Christ.