Romans 4:11-12

Williams(i) 11 Afterward he received the mark of circumcision as God's seal of his right standing with Him on condition of faith which he had before he was circumcised, that he might be the forefather of all who have faith while still uncircumcised, that they might have their faith credited to them as right standing with God; 12 and the forefather of those Jews who not only belong to the circumcision but also follow in the footsteps of our forefather Abraham in the faith he had before he was circumcised.