'Circumcision' in the Bible

Circumcision does indeed profit, if you obey the Law; but if you are a Law-breaker, the fact that you have been circumcised counts for nothing.

In the same way if an uncircumcised man pays attention to the just requirements of the Law, shall not his lack of circumcision be overlooked, and,

although he is a Gentile by birth, if he scrupulously obeys the Law, shall he not sit in judgement upon you who, possessing, as you do, a written Law and circumcision, are yet a Law-breaker?

For the true Jew is not the man who is simply a Jew outwardly, and true circumcision is not that which is outward and bodily.

But the true Jew is one inwardly, and true circumcision is heart-circumcision--not literal, but spiritual; and such people receive praise not from men, but from God.

What special privilege, then, has a Jew? Or what benefit is to be derived from circumcision?

Before, not after. And he received circumcision as a sign, a mark attesting the reality of the faith-righteousness which was his while still uncircumcised, that he might be the forefather of all those who believe even though they are uncircumcised--in order that this righteousness might be placed to their credit;