Under what circumstances was it credited to him as right standing? Was it after he was circumcised, or before? Not after but before he was circumcised.

because, although they once knew God, they did not honor Him as God, or give Him thanks, but became silly in their senseless speculations, and so their insensible hearts have been shrouded in darkness.

but the man who does no work, but simply puts his faith in Him who brings the ungodly into right standing with Himself, has his faith credited to him as right standing.

For what does the Scripture say? "Abraham put his faith in God, and it was credited to him as right standing with God."

Now does this happiness come to the Jews alone, or to the heathen peoples too? For we say, "Abraham's faith was credited to him as right standing."

Therefore, his faith was credited to him as right standing with God.