2 Chronicles 18:3, 5, 9

Ahab king of Israel said to Jehoshaphat king of Judah, “Will you go with me to [fight against] Ramoth-gilead?” He answered, “I am as you are, and my people as your people [your hopes and concerns are ours]; we will be with you in the battle.”

Then the king of Israel assembled the prophets, four hundred men, and said to them, “Shall we go against Ramoth-gilead to battle, or shall I refrain?” And they said, “Go up, for God will hand it over to the king.”

Now the king of Israel and Jehoshaphat the king of Judah were sitting, each on his throne, arrayed in their robes; they were sitting at the threshing floor at the entrance of the gate of Samaria; and all the prophets were prophesying before them.