Williams(i)
17 I mean this: The law which was given four hundred and thirty years later could not annul the contract which had already been ratified by God, so as to cancel the promise.
18 For if our inheritance depends on the law, it can no longer depend on the promise. But it was by promise that God so graciously bestowed it upon Abraham.
19 Then what about the law? It was added later on to increase transgressions, until the descendant to whom the promise was made should come, enacted through the agency of angels in the person of an intermediary.
20 Though an intermediary implies more than one party, yet God is only one.
21 Is the law then contrary to God's promises? Of course not. For if a law had been given that was able to impart life, surely, then, right standing would have come through law.
22 But the Scripture pictures all mankind as prisoners of sin, so that the promised blessing through faith in Christ might be given to those who have faith.
23 But before this faith came, we were kept locked up under the law, in preparation for the faith which was to be unveiled.
24 So the law has been our attendant to lead us to Christ, so that we might through faith obtain right standing with God.