'King of Israel' in the Bible

The words of Amos, who was among the herdsmen of Tekoa; what he saw about Israel in the days of Uzziah, king of Judah, and in the days of Jeroboam, the son of Joash, king of Israel, two years before the earth-shock.

Then Amaziah, the priest of Beth-el, sent to Jeroboam, king of Israel, saying, Amos has made designs against you among the people of Israel: the land is troubled by his words.