2 Chronicles 18:3, 5, 9

Ahab king of Israel asked Jehoshaphat king of Judah, “Will you go with me to attack Ramoth in Gilead?” Jehoshaphat answered, “I will go with you, and my soldiers are yours. We will join you in the battle.”

So King Ahab called four hundred prophets together and asked them, “Should we go to war against Ramoth in Gilead or not?” They answered, “Go, because God will hand them over to you.”

Ahab king of Israel and Jehoshaphat king of Judah had on their royal robes and were sitting on their thrones at the threshing floor, near the entrance to the gate of Samaria. All the prophets were standing before them speaking their messages.