Romans 2:17

The Condemnation of the Jew

2:17 But if you call yourself a Jew and rely on the law ¹  and boast of your relationship to God ² 

Romans 2:28

2:28 For a person is not a Jew who is one outwardly, nor is circumcision something that is outward in the flesh,

[2:17]  ¹ sn The law refers to the Mosaic law, described mainly in the OT books of Exodus, Leviticus, Numbers, and Deuteronomy.

[2:17]  ² tn Grk “boast in God.” This may be an allusion to Jer 9:24.