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.'
Now, it is interesting that he only names Jeroboam as the king of Israel, but Jeroboam, after his death, there were many other kings of Israel. But Israel, at this point, had slipped into a state of anarchy. Jeroboam was the last king of Israel through which God really spoke or to whom God really spoke. After Jeroboam's assassination there was so much anarchy, intrigue, and one assassination after another, that he does not really acknowledge any of the others as kings in Israel. And yet, his prophecies were mainly directly to Israel.