Romans 4:9 - Clarke's commentary and critical notes on the Bible

Cometh this blessedness then upon the circumcision only, or upon the uncircumcision also? for we say that faith was reckoned to Abraham for righteousness. Cometh this blessedness - upon the circumcision only - The word μονον, only, is very properly supplied by our translators, and indeed is found in some excellent MSS., and is here quite necessary to complete the sense. The apostle's question is very nervous. If this pardon, granted in this way, be essential to happiness - and David says it is so - then is it the privilege of the Jews exclusively? This cannot be; for, as it is by the mere mercy of God, through faith, the circumcision cannot even claim it. But if God offer it to the circumcision, not because they have been obedient, for they also have sinned, but because of his mere mercy, then of course the same blessedness may be offered to the Gentiles who believe in the Lord Jesus. And this is evident; for we say, following our own Scriptures, that faith was reckoned to Abraham for righteousness; he had no merit, he was an idolater; but he believed in God, and his faith was reckoned to him εις δικαιοσυνην, in reference to his justification; he brought faith when he could not bring works; and God accepted his faith in the place of obedience; and this became the instrumental cause of his justification.