And he received the sign of circumcision, a seal of the righteousness of the faith which he had yet being uncircumcised: that he might be the father of all them that believe, though they be not circumcised; that righteousness might be imputed unto them also:
All Commentaries on Romans 4:11 Go To Romans 4
George Leo Haydock
AD 1849
And he received, after he was justified, circumcision, as a seal of the justice of faith, which he had before when he believed. Circumcision, therefore, in Abraham, was as a seal and testimony of the justice which he had already by faith: though circumcision was chiefly given to Abraham and his posterity, as a sign or seal of that alliance which God made with Abraham, and his seed, to show he had made choice of them for his elect people. (Witham)