Galatians 3
17 Ref Now this I say: The law, which came four hundred and thirty years after, does not put an end to the agreement made before by God, so as to make the undertaking without effect.
18 Ref Because if the heritage is by the law, it is no longer dependent on the word of God; but God gave it to Abraham by his word.
19 Ref What then is the law? It was an addition made because of sin, till the coming of the seed to whom the undertaking had been given; and it was ordered through angels by the hand of a go-between.