Of which thing I do not doubt what follows is to be understood, "And will divide Israel in twain," to wit, into Israel pertaining to the bond woman, and Israel pertaining to the free. For these two kinds were at first together, as Abraham still clave to the bond woman, until the barren, made, fruitful by the grace of God, cried, "Cast out the bond woman and her son." We know, indeed, that on account of the sin of Solomon, in the reign of his son Rehoboam Israel was divided in two, and continued so, the separate parts having their own kings, until that whole nation was overthrown with a great destruction, and carried away by the Chaldeans. But what was this to Saul, when, if any such thing was threatened, it would be threatened against David himself, whose son Solomon was? Finally, the Hebrew nation is not now divided internally, but is dispersed through the earth indiscriminately, in the fellowship of the same error. But that division with which God threatened the kingdom and people in the person of Saul, who represented them, is shown to be eternal and unchangeable by this which is added, "And He will not be changed, neither will He repent: for He is not as a man, that He should repent; who threatens and does not persist,"—that is, a man threatens and does not persist, but not God, who does not repent like man. For when we read that He repents, a change of circumstance is meant, flowing from the divine immutable foreknowledge. Therefore, when God is said not to repent, it is to be understood that He does not change.