Romans 4:11-13

New Revised Standard Version Catholic Edition

¹¹ He received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised. The purpose was to make him the ancestor of all who believe without being circumcised and who thus have righteousness reckoned to them, ¹² and likewise the ancestor of the circumcised who are not only circumcised but who also follow the example of the faith that our ancestor Abraham had before he was circumcised.

God’s Promise Realized through Faith

¹³ For the promise that he would inherit the world did not come to Abraham or to his descendants through the law but through the righteousness of faith.