1 Kings 22:5-8

But Jehoshaphat also said to the king of Israel, “First seek the counsel of the LORD.” So the king of Israel brought together the prophets—about four hundred men—and asked them, “Shall I go to war against Ramoth Gilead, or shall I refrain?” “Go,” they answered, “for the Lord will give it into the king’s hand.” But Jehoshaphat asked, “Is there no longer a prophet of the LORD here whom we can inquire of?” The king of Israel answered Jehoshaphat, “There is still one prophet through whom we can inquire of the LORD, but I hate him because he never prophesies anything good about me, but always bad. He is Micaiah son of Imlah.” “The king should not say such a thing,” Jehoshaphat replied.