Romans 2:25-29 - Circumcision Of The Heart
25 Now, circumcision is indeed profitable, if you keep the law: but, if you transgress the law, your circumcision becomes uncircumcision. 26 If, then, he who is uncircumcised keeps the righteousness of the law, shall not his uncircumcision be counted for circumcision? 27 And shall not he whose want of circumcision is owing to his birth, if he keeps the law, condemn you, who, by the literal circumcision, transgress the law? 28 For he is not a Jew who is one outwardly, nor is that circumcision which is outward in the flesh: 29 but he is a Jew who is one inwardly; and circumcision is that of the heart, in the spirit, not in the letter, whose praise is not of men, but of God.