17. Now I say this: A covenant confirmed beforehand by God in Messiah, the law, which came four hundred and thirty years after, does not annul, so as to make the promise of no effect.
18. For if the inheritance is of the law, it is no more of promise; but God has granted it to Abraham by promise.
19. Then why is there the law? It was added because of transgressions, until the offspring should come to whom the promise has been made. It was ordained through angels by the hand of a mediator.
20. Now a mediator is not between one, but God is one.