Ahab died in the battle at Ramoth-Gilead

28 So the king of Israel and the king of Judah led their armies to Ramoth, in the Gilead region. 29 King Ahab said to Jehoshaphat, “I will put on different clothes, in order that no one will recognize that I am the king. But you should wear your royal robe.” So the king of Israel disguised himself, and they both went into the battle.

30 The King of Syria told his soldiers who were driving the chariots, “Attack only the king of Israel!” 31 So when the soldiers who were driving the Syrian chariots saw Jehoshaphat wearing the royal robes, they thought “He must be the king of Israel!” 32 So they turned to attack him. But when Jehoshaphat cried out, Yahweh helped him, and they realized that he was not the king of Israel. And God caused them to stop pursuing him.

33 But one Syrian soldier shot an arrow at Ahab, without knowing that it was Ahab. The arrow struck Ahab between the places where the parts of his armor joined together. Ahab told the driver of his chariot, “Turn the chariot around and take me out of here! I have been severely wounded!” 34 The battle continued all that day. Ahab was sitting propped up in his chariot, facing the Syrian soldiers. And late in the afternoon, when the sun was setting, he died.

19 When King Jehoshaphat was returning safely to his palace in Jerusalem, 2 the prophet Jehu, the son of the prophet Hanani, went out of the city to meet the king, and said to him, “It was not right for you to help a wicked man and to love those who hate Yahweh. Because of what you have done, Yahweh is angry with you. 3 But you have done some good things; you got rid of the poles in this country for worshiping the goddess Asherah, and you have strongly determined to do what pleases God.”