Romans 9:10

"And not only this; but when Rebecca also had conceived by one, even by our father Isaac." The subject in question was an important one. Hence he turns to several arguments, and endeavors by all means to solve the difficulty. For if it was at once strange and new for them to be cast out after so great promises, it is much more strange that we even should come into their good things, who did not expect anything of the kind. I might, he implies, have mentioned the children by Keturah besides, but I do not. But to gain the victory from a vantage ground it is those born of one and the same father, and mother too, that I bring forward. For they were both sprung from Rebecca, and from Isaac the true-born, the elect, the son honored above all, of whom He said, "In Isaac shall thy seed be called," who became "the father of us all;" but if he was our father, then should his sons have been our fathers; yet it was not so. You see how this happens not in Abraham's case only, but also in that of his son himself, and how it is faith and virtue in all cases that is conspicuous, and gives the real relationship its character.

He has already proven that although Abraham had many different descendants, Isaac and those who are born like him were called his seed. Now he says: you can see this not only in Isaac, but, what is more important, in brothers born of the same …

Then he clarifies his thesis so far as it concerns Jacob, when he says and not only she. First, he states his intention; second, he clarifies his position, at for when the children were not yet born. First, therefore, he says: and not only she, …

The apostle mentions this to show, that neither were their ancestors accepted through any merit of their own. That the purpose of God according to election might stand - Whose purpose was, to elect or choose the promised seed.

As God chose Isaac and Jacob, and rejected Ishmael and Esau, so he might and did choose faith to be the condition of salvation and reject the works of the law. Thus Arminius understands it, De rejectis et assumptis talibus, certa qualitate notatis--Concerning such as are rejected and such as are chosen, being distinguished by appropriate qualities; so John Goodwin.

And not only this,.... This instance of Ishmael and Isaac, is not the only one, proving that Abraham's natural seed, the children of the flesh, are not all children, the children of God: but when Rebecca also had conceived by one, even by our father Isaac, "it was said unto her", Rom 9:12, being in a parenthesis, "the elder shall serve the younger".

And not only this; but when Rebecca, &c.--It might be thought that there was a natural reason for preferring the child of Sarah, as being Abraham's true and first wife, both to the child of Hagar, Sarah's maid, and to the children of Keturah, his second wife.

And not only this - A Jew might object: “Ishmael was rejected, not by the sovereign will of God, but because he was the son of the handmaid, or bond-woman, and therefore unworthy to be the peculiar seed; but observe, this was not the only limitation of the seed of Abraham with regard to inheriting the promise, for when Rebecca was with child by that one person of Abraham’s issue to whom the promise was made, namely, our father Isaac, she went to inquire of the Lord, Gen 25:22, Gen 25:23: And the Lord said unto her, Two nations are in thy womb, and two manner of People shall be separated from thy bowels; and the one People shall be stronger than the other People; and the elder shall serve the younger.

And not only this - Not only is the principle of making a distinction among the natural descendants of Abraham thus settled by the promise, but it is still further seen and illustrated in the birth of the two sons of Isaac. He had shown that the principle of thus making a distinction among the posterity of Abraham was recognised in the original promise, thus proving that all the descendants of Abraham were not of course to be saved; and he now proceeds to show that the principle was recognised in the case of his posterity in the family of Isaac. And he shows that it is not according to any natural principles that the selection was made; that he not only made a distinction between Jacob and Esau, but that he did it according to his good pleasure, choosing the younger to be the object of his favor, and rejecting the older, who, according to the custom of the times, was supposed to be entitled to special honor and rights. And in order to prove that this was done according to his own pleasure, he shows that the distinction was made before they were born; before they had formed any character; and, consequently, in such a way that it could not be pretended that it was in consequence of any works which they had performed. But when Rebecca - The wife of Isaac; see Gen 25:21, Gen 25:23.