1 Kings 22:5-7

5But Jehoshaphat also said to the king of Israel, “First seek the counsel of the Lord.” 6So 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.” 7But Jehoshaphat asked, “Is there no longer a prophet of the Lord here whom we can inquire of?”