BLB(i)
16 Now the promises were spoken to Abraham and to his seed. It does not say “and to seeds” as of many but “and to your seed” as of One, who is Christ.
17 Now I say this: The Law, having come four hundred and thirty years afterward, does not annul the covenant having been confirmed beforehand by God, so as to nullify the promise.
18 For if the inheritance is by the Law, it is no longer by a promise. But God has granted it to Abraham through a promise.
19 Why then the Law? It was added on account of transgressions, until the seed to whom promise has been made should have come, having been ordained through angels in the hand of a mediator.