Romans 2:29 BBE

²⁷  And they, by their keeping of the law without circumcision, will be judges of you, by whom the law is broken though you have the letter of the law and circumcision.

²⁸  The true Jew is not one who is only so publicly, and circumcision is not that which may be seen in the flesh:

²⁹  But he is a Jew who is a secret one, whose circumcision is of the heart, in the spirit and not in the letter; whose praise is not from men, but from God.