Romans 4:11

4:11 And he received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised, so that he would become the father of all those who believe but have never been circumcised, that they too could have righteousness credited to them.

Romans 2:27

2:27 And will not the physically uncircumcised man who keeps the law judge you who, despite the written code and circumcision, transgress the law?

Romans 3:30

3:30 Since God is one, he will justify the circumcised by faith and the uncircumcised through faith.