2 Chronicles 21:4-7

Now when Jehoram was risen up over the kingdom of his father, and had strengthened himself, he slew all his brethren with the sword, and divers also of the princes of Israel. Jehoram was thirty and two years old when he began to reign; and he reigned eight years in Jerusalem. And he walked in the way of the kings of Israel, as did the house of Ahab; for he had the daughter of Ahab to wife: and he did that which was evil in the sight of Jehovah. Howbeit Jehovah would not destroy the house of David, because of the covenant that he had made with David, and as he promised to give a lamp to him and to his children alway.