Romans 2:25
Circumcision [the sign of the covenant of Abraham] is indeed of value if you practice the Law; but if you habitually break the Law, your circumcision has become uncircumcision [it is meaningless in God’s sight].
Jeremiah 4:4
“Circumcise (dedicate, sanctify) yourselves to the Lord
And remove the foreskin [sins] of your heart,
Men of Judah and inhabitants of Jerusalem,
Or else My wrath will go forth like fire [consuming all that gets in its way]
And burn and there will be no one to quench it,
Because of the evil of your acts.”
Deuteronomy 30:6
“And the Lord your God will circumcise your heart and the hearts of your descendants [that is, He will remove the desire to sin from your heart], so that you will love the Lord your God with all your heart and all your soul, so that you may live [as a recipient of His blessing].
Jeremiah 9:25-26
“Behold, the days are coming,” says the Lord, “when I will punish all who are circumcised [physically] and yet uncircumcised [spiritually]—
Acts 7:51
“You stiff-necked and stubborn people, uncircumcised in heart and ears, you are always actively resisting the Holy Spirit. You are doing just as your fathers did.
Romans 2:23
You who boast in the Law, do you [repeatedly] dishonor God by
Romans 2:28-2
For he is not a [real] Jew who is only one outwardly, nor is [true] circumcision something external and physical.
Romans 4:11-12
He received the sign of circumcision, a seal or confirmation of the righteousness which he had by faith while [he was still] uncircumcised—this was so that he would be the [spiritual] father of all who believe without being circumcised—so that righteousness would be credited to them,
Galatians 5:3-6
Once more I solemnly affirm to every man who receives circumcision [as a supposed requirement of salvation], that he is under obligation and required to keep the whole Law.
Galatians 6:15
For neither is circumcision anything [of any importance], nor uncircumcision, but [only] a new creation [which is the result of a new birth—a spiritual transformation—a new nature in Christ Jesus].
Ephesians 2:11-12
Therefore, remember that at one time you Gentiles by birth, who are called “Uncircumcision” by those who called themselves “Circumcision,” [itself a mere mark] which is made in the flesh by human hands—