1 Kings 22:1-5

Three years passed without war between Aram and Israel. In the third year Jehoshaphat the king of Judah came down to the king of Israel. Now the king of Israel said to his servants, “Do you know that Ramoth-gilead belongs to us, and we are still doing nothing to take it out of the hand of the king of Aram?” And he said to Jehoshaphat, “Will you go with me to battle at Ramoth-gilead?” And Jehoshaphat said to the king of Israel, “I am as you are, my people as your people, my horses as your horses.” Moreover, Jehoshaphat said to the king of Israel, “Please inquire first for the word of the LORD.”