Galatians 3:17-19

17And this I say, that the law, which was four hundred and thirty years later, cannot annul the covenant that was confirmed before by God in Christ, that it should make the promise of no effect.

18For if the inheritance is of the law, it is no longer of promise; but God gave it to Abraham by promise.

19What purpose then does the law serve? It was added because of transgressions, till the Seed should come to whom the promise was made; and it was appointed through angels by the hand of a mediator.