25 Circumcision does indeed profit, if you are obedient to the Law; but if you habitually break the Law, your circumcision is become uncircumcision.
Romans 2:25 Cross References - MNT
Acts 7:51
51 "Stiff-necked, uncircumcised in heart and ears! You are always resisting the Holy Ghost! As your fathers did, so do you.
Romans 2:23
23 You who are making your boast in the Law, do you habitually dishonor God through your transgressions of the Law?
Romans 2:28-3:2
28 For the real Jew is not the man who is one outwardly, and the real circumcision is not outward in the flesh;
Romans 4:11-12
11 and he received circumcision as a sign, a seal of the faith-righteousness which he had while he was in uncircumcision; in order that he might be the father of all who believe, even though they are uncircumcised; so that righteousness might be imputed to them.
12 He is the father of circumcision to those who are not merely circumcised, but who also walk in the steps of that faith of our father Abraham which he held while he was as yet uncircumcised.
Galatians 5:3-6
3 I solemnly testify to every man who submits to circumcision that he obligates himself to keep the whole Law.
4 If you are being justified by law, you are cut off from Christ; you are fallen away from grace.
5 But we are not, for we through the Spirit are eagerly waiting by faith for a hope of righteousness (a hope well founded);
6 because in Christ neither circumcision has any value, nor uncircumcision, but faith which works through love.
Galatians 6:15
15 For in Jesus Christ neither is circumcision anything, nor uncircumcision, but a new creation.
Ephesians 2:11-12
11 Do not forget then, that you Gentiles in the flesh, who are called "uncircumcision" by the "circumcision" made in flesh by man's hand,
12 were once upon a time without Christ, aliens from the commonwealth of Israel, strangers to the covenants of the Promise, without hope and without God in the world.