Leviticus 26:41

26:41 (and I myself will walk in hostility against them and bring them into the land of their enemies), and then their uncircumcised hearts become humbled and they make up for their iniquity,

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.”

Acts 7:51

7:51 “You stubborn people, with uncircumcised hearts and ears! You are always resisting the Holy Spirit, like your ancestors did!

Romans 2:28-29

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.

Colossians 2:11-13

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. 2:12 Having been buried with him in baptism, you also have been raised with him through your faith in the power of God who raised him from the dead. 2:13 And even though you were dead in your transgressions and in the uncircumcision of your flesh, he nevertheless made you alive with him, having forgiven all your transgressions.