Romans 4:9-11

9Is this blessing only for the circumcised, then? Or is it also for the uncircumcised? For we say, Faith was credited to Abraham for righteousness.

10In what way, then, was it credited — while he was circumcised, or uncircumcised? It was not while he was circumcised, but uncircumcised.

11And he received the sign of circumcision as a seal of the righteousness that he had by faith while still uncircumcised. This was to make him the father of all who believe but are not circumcised, so that righteousness may be credited to them also.