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