1 Kings 22:3-4

3During the visit, the king of Israel said to his officials, “Do you realize that the town of Ramoth-gilead belongs to us? And yet we’ve done nothing to recapture it from the king of Aram!”

4Then he turned to Jehoshaphat and asked, “Will you join me in battle to recover Ramoth-gilead?” Jehoshaphat replied to the king of Israel, “Why, of course! You and I are as one. My troops are your troops, and my horses are your horses.”