1 Kings 22:2-5

But in the third year Jehoshaphat the king of Judah came down to the king of Israel. And the king of Israel said to his servants, “Do you know that Ramoth-gilead belongs to us, and we keep quiet and do not take it out of the hand of the king of Syria?” 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.” And Jehoshaphat said to the king of Israel, “Inquire first for the word of the LORD.”