Charles Spurgeon Commentary Romans 4:10-11

"How then was it reckoned? when he was in circumcision, or in uncircumcision? Not in circumcision, but in uncircumcision: and he received the sign of circumcision, a seal of the righteousness of the faith which he had while he was in uncircumcision; that he might be the father of all them that believe, though they be in uncircumcision, that righteousness might be reckoned unto them;" — Romans 4:10-11 (ASV)

Not in circumcision, but in uncircumcision. And he received the sign of circumcision, a seal of the righteousness of the faith which he had yet being uncircumcised:

But the sign is to follow the thing signified. He is, first of all, justified by his faith, and then afterwards he receives the token of the covenant.