1 Kings 22:5-8

Then Jehoshaphat added, “But first let’s find out what the LORD says.” So the king of Israel summoned the prophets, about 400 of them, and asked them, “Should I go to war against Ramoth-gilead, or should I hold back?” They all replied, “Yes, go right ahead! The Lord will give the king victory.” But Jehoshaphat asked, “Is there not also a prophet of the LORD here? We should ask him the same question.” The king of Israel replied to Jehoshaphat, “There is one more man who could consult the LORD for us, but I hate him. He never prophesies anything but trouble for me! His name is Micaiah son of Imlah.” Jehoshaphat replied, “That’s not the way a king should talk! Let’s hear what he has to say.”