Romans 2:26-28

2:26 Therefore if the uncircumcised man obeys the righteous requirements of the law, will not his uncircumcision be regarded as circumcision? 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? 2:28 For a person is not a Jew who is one outwardly, nor is circumcision something that is outward in the flesh,

Romans 3:30

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

Romans 15:8

15:8 For I tell you that Christ has become a servant of the circumcised on behalf of God’s truth to confirm the promises made to the fathers,