14 That the blessing of Abraham might come on the Gentiles through Jesus Christ, that we might receive the promise of the Spirit through faith.
15 Brethren, (I speak after the manner of men) Even when a covenant is of man, once it is confirmed, no one cancels it or adds to it.
16 Now to Abraham and his seed were the promises made. He did not say, And to seeds, as of many, but as of one, And to thy seed, which is Christ.
17 And this I say that regarding the covenant, that was confirmed before of God in Christ, the law, which was four hundred and thirty years after, cannot cancel it, that it should make the promise of no effect.
18 For if the inheritance is of the law, it is no longer of promise; but God gave it to Abraham by promise.
19 For what then serves the law? It was added because of rebellions until the seed should come to whom the promise was made, and it was ordained by angels in the hand of a mediator.
20 Now a mediator is not a mediator of one, but God is one.