Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the descendants; not to those only who are of the law, but to those also who are of the faith of Abraham; who is the father of us all,
All Commentaries on Romans 4:16 Go To Romans 4
Ambrosiaster
AD 400
The promise could not be certain to every offspring, that is, to everyone from every nation, unless it was by faith. The source of the promise is faith and not the law, because those who are under the law are guilty, and the promise cannot be given to those who are guilty. For this reason they must first be purified by faith, so that they may become worthy to be called the children of God, so that the promise may be certain. For if they say they are children of God when they are still guilty (that is to say, under the law), then the promise is not certain. First the children of God must be set free from sin. So those who are under the law must be rescued from the law in order to deserve to receive the promise, which is all the greater because it is apart from the law. Commentary on Paul’s Epistles.
