Galatians 3:14-18

14that upon the Gentiles might come the blessing of Abraham in Christ Jesus; that we might receive the promise of the Spirit through faith.

15Brethren, I speak after the manner of men: Though it be but a man’s covenant, yet when it hath been confirmed, no one maketh it void, or addeth thereto. 16Now to Abraham were the promises spoken, and to his seed. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ. 17Now this I say: A covenant confirmed beforehand by God, the law, which came four hundred and thirty years after, doth not disannul, so as to make the promise of none effect. 18For if the inheritance is of the law, it is no more of promise: but God hath granted it to Abraham by promise.