2 Chronicles 21:4-7

4Now when Jehoram was risen up to the kingdom of his father, he strengthened himself, and slew all his brethren with the sword, and divers also of the princes of Israel.

5Jehoram was thirty and two years old when he began to reign, and he reigned eight years in Jerusalem. 6And he walked in the way of the kings of Israel, like as did the house of Ahab: for he had the daughter of Ahab to wife: and he wrought that which was evil in the eyes of Yhwh. 7Howbeit Yhwh would not destroy the house of David, because of the covenant that he had made with David, and as he promised to give a light to him and to his sons for ever.1