Paul used this text as the cornerstone on which he erected the doctrine of justification by faith (Rom. 4:3; Gal. 3:6). Although the possibility that Abram would have children had decreased since God’s first promise, as his age increased, he did not hesitate to take God’s word that it would be so. The Hebrew verbal form, translated “he believed,” he’emin, is from the same root as the word amen, with which we emphasize our desire that God may hear and fulfill our prayers. This verb expresses complete trust in the power and promises of God. The particular form of the verb here used expresses, furthermore, that this was not just Abram’s historical experience at the moment, but an abiding character trait as well. He kept on believing. Abram’s faith and childlike trust in God did not make him “righteous”; rather, the Lord, “counted it to him for righteousness.” For the first time these important concepts, faith and justification, are brought together. It is obvious that Abram had no “righteousness” until it was credited to him by God. And if he had none, no man has ever had. Abram was a sinner and needed redemption, as does every other human being; but when righteousness was imputed to him, mercy and grace were also extended, effecting the pardon of his sin and bringing the rewards of righteousness. Here for the first time the full importance of faith is brought to view. Here also, for the first time, imputed righteousness is mentioned. From this point onward both fundamental concepts run through the Holy Scriptures, to find exhaustive and masterful treatment by the pen of the apostle Paul (see Rom. 4).