Romans 2:25

For, circumcision, indeed, profiteth - if, law, thou be practising; but, if thou be a transgressor of law, thy circumcision, hath become, uncircumcision

Jeremiah 4:4

Circumcise yourselves unto Yahweh So shall ye remove the impurity of your heart, ye men of Judah and ye inhabitants of Jerusalem, - Lest mine indignation, go forth as fire, and burn and there be none to quench it, Because of the wickedness of your doings.

Deuteronomy 30:6

And Yahweh thy God will circumcise thy heart, and the heart of thy seed, - to love Yahweh thy God with all thy heart and with all thy soul, that thou mayest live.

Jeremiah 9:25-26

Lo! days are coming, Declareth Yahweh, - When I will bring punishment upon every one circumcised, With him that is uncircumcised:

Acts 7:51

Ye stiff-necked and uncircumcised in hearts and in ears, ye, always, against the Holy Spirit, do strive! As your fathers, ye also:

Romans 2:23

That in law dost boast, Through the transgression of the law, art thou dishonouring God?

Romans 2:28-2

For, not he who is one in appearance, is a Jew, nor is, that which is such in appearance in flesh, circumcision;

Romans 4:11-12

And, a sign, he received namely of circumcision, a seal of the righteousness of the faith which he had while yet uncircumcised; to the end he might be father of all that believe during uncircumcision, to the end the same righteousness might be reckoned unto them, -

Galatians 5:3-6

Yea, I bear solemn witness again, unto every man getting circumcised, - that he is, a debtor, to do, the whole law.

Galatians 6:15

For neither circumcision is anything, nor uncircumcision, but a new creation; -

Ephesians 2:11-12

Wherefore, keep in remembrance - that, at one time, ye, the nations in flesh, who are called Uncircumcision by the so-called Circumcision in flesh, made by hand,

Treasury of Scripture Knowledge

Summary

For circumcision verily profiteth, if thou keep the law: but if thou be a breaker of the law, thy circumcision is made uncircumcision.

Bible References

But if

Romans 2:23
That in law dost boast, Through the transgression of the law, art thou dishonouring God?
Jeremiah 9:25
Lo! days are coming, Declareth Yahweh, - When I will bring punishment upon every one circumcised, With him that is uncircumcised:
Acts 7:51
Ye stiff-necked and uncircumcised in hearts and in ears, ye, always, against the Holy Spirit, do strive! As your fathers, ye also: