Romans 4:11-13

New Testament for Everyone

¹¹ He received circumcision as a sign and seal of the status of covenant membership, on the basis of faith, which he had when he was still uncircumcised. This was so that he could be the father of all who believe even when uncircumcised, so that the status of covenant membership can be calculated to their account as well. ¹² He is also, of course, the father of the circumcised who are not merely circumcised but who follow the steps of the faith which Abraham possessed while still uncircumcised.

Abraham is the father of all believers

¹³ The promise, you see, didn’t come to Abraham or to his family through the law—the promise, that is, that he would inherit the world. It came through the covenant justice of faith.