Romans 4:11

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;

Romans 4:19-20

Though he was nearly a hundred years old, yet his faith did not fail him, even when he thought of his own body, then utterly worn out, and remembered that Sarah was past bearing children.

Treasury of Scripture Knowledge did not add