Galatians 3:15-17 Revised Geneva Translation (RGT)
15 Brothers, I speak as men do: Though it be but a man’s covenant, when it is confirmed, no one ignores it, or adds anything to it.
16 Now to Abraham and his seed were the promises made. He does not say, “and to the seeds”, as speaking of many, but, “And to your seed”, as of one, which is Christ.
17 And this I say, that the covenant that was previously confirmed by God in Christ, cannot be annulled by the Law, which was four hundred and thirty years after; so that it should make the promise of no effect.