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.'
I indeed admit that the Prophet here gave hope of salvation to the faithful; for it is certain that there were some remaining in the kingdom of Israel. Though the whole body had revolted, yet God, as it was said to Elijah, had preserved to himself some seed. The Prophet then was unwilling to leave the faithful, who remained among that lost people, without hope of salvation; but, at the same time, he had regard to hypocrites, as we have already stated. We now see the design of the Prophet, for he teaches that there would be such a vengeance as he had spoken of, though God would not yet be forgetful of his word; he teaches that there would be such a casting away of the people, though God’s election would yet remain firm and unchangeable; in short, he teaches that the adoption by which God had chosen the offspring of Abraham as his people would not be void. This is the import of the whole. Then the number of the children of Israel shall be as the sand of the sea, which is not to be measured nor numbered. 