Romans 2:26-27
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?
Romans 4:10
4:10 How then was it credited to him? Was he circumcised at the time, or not? No, he was not circumcised but uncircumcised!