Jehoshaphat allies himself by marriage with Ahab and goes down to Samaria, where Ahab feasts him and invites him to go up with him against Ramoth-gilead. Jehoshaphat agrees but asks that they first inquire for the word of the Lord. Ahab gathers four hundred prophets, who promise victory, and Zedekiah the son of Chenaanah makes horns of iron to announce that Ahab will push the Syrians. Jehoshaphat asks whether there is not another prophet of the Lord. Ahab answers that there is one, Micaiah the son of Imlah, but that he hates him because he never prophesies good for him.
Micaiah swears that he will speak only what his God tells him. At first he answers ironically that they should go up; when Ahab demands the truth, he says he saw all Israel scattered on the mountains like sheep without a shepherd. He then tells how he saw the Lord on his throne with the host of heaven around him, and how a spirit offered to be a lying spirit in the mouth of all Ahab's prophets, and the Lord allowed it. Zedekiah strikes Micaiah on the cheek, and Ahab orders him put in prison on bread and water until he returns in peace. Micaiah answers that if he returns in peace, the Lord has not spoken by him.
Ahab disguises himself while Jehoshaphat puts on his robes. The Syrian captains, who were to fight only the king of Israel, surround Jehoshaphat, but he cries out, and the Lord helps him and draws them away. A man draws his bow at random and strikes Ahab between the joints of the armor. The king is propped up in his chariot facing the Syrians until evening and dies as the sun sets.