The word of Yahweh that came to Hosea the son of Beeri, in the days of Uzziah, Jotham, Ahaz, and Hezekiah, kings of Judah, and in the days of Jeroboam the son of Joash, king of Israel.
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.