For the promise to Abraham or his seed, that he should be the heir of the world, was not through the law, but through the righteousness of faith.

For if the heirs were by the law, faith has been made void, and the promise vitiated.

Therefore it is by faith, in order that it may be by grace; that the promise may be sure to all the seed; not only of the law, but also of the faith of Abraham; who is the father of us all,

but he staggered not at the promise of God through unbelief; but was filled up with dynamite through faith, having given glory to God;

that is the children of the flesh the same are not the children of God; but the children of the promise are counted for the seed.

For this is the word of the promise, About this time I will come, and there shall be a son to Sarah.