Romans 2:28

28 For he is not a Jew who is [so] outwardly, neither [is] circumcision that which is outward in flesh;

Romans 2:28 Meaning and Commentary

Romans 2:28

For he is not a Jew which is one outwardly
The apostle removes the plea in favour of the Jews, taken from their name and privilege, by distinguishing between a Jew and a Jew, and between circumcision and circumcision: "he is not a Jew which is one outwardly"; by mere name, nature, nation, religion, and profession:

neither is that circumcision which is outward in the flesh;
which takes away the flesh of the foreskin, but not the carnality of the heart; leaves a mark upon the flesh, but no impression on the mind. This is nothing, is not the true, solid, substantial, spiritual circumcision, which only avails in the sight of God.

Romans 2:28 In-Context

26 If, therefore the uncircumcision the righteousness of the law may keep, shall not his uncircumcision for circumcision be reckoned?
27 and the uncircumcision, by nature, fulfilling the law, shall judge thee who, through letter and circumcision, [art] a transgressor of law.
28 For he is not a Jew who is [so] outwardly, neither [is] circumcision that which is outward in flesh;
29 but a Jew [is] he who is [so] inwardly, and circumcision [is] of the heart, in spirit, not in letter, of which the praise is not of men, but of God.
Young's Literal Translation is in the public domain.