Not after, but before. And it was as a sign of this that he received the rite of circumcision-to attest the righteousness due to the faith of an uncircumcised man-in order that he might be the father of all who have faith in God even when uncircumcised, that they also may be regarded by God as righteous;

Even these men who are circumcised do not themselves keep the Law; yet they want you to be circumcised, so that they may boast of your observance of the rite.