Yet the number of the children of Israel will be as the sand of the sea, which can't be measured nor numbered; and it will come to pass that, in the place where it was said to them, 'You are not my people,' they will be called 'sons of the living God.'
We indeed know, that whenever the Prophets severely reproved the people and denounced destruction, this was ever opposed to them, “What! can it be that the Lord will destroy us? What would then become of this promise, Thy seed shall be as the stars of heaven and as the sand of the sea?” Hence the Prophet here checks this vain-confidence, by which hypocrites supported themselves against all threatening, “Though God may cut you off, he will yet continue true and faithful to the promise, that Abraham’s seed shall be innumerable as the sand of the sea.” 