2 Kings 3:1-7

Ahab’s son Joram began to rule over Israel in the eighteenth year of King Jehoshaphat’s reign in Judah. He reigned in Samaria twelve years. He did what was evil in the LORD’s sight, but not to the same extent as his father and mother. He at least tore down the sacred pillar of Baal that his father had set up. Nevertheless, he continued in the sins that Jeroboam son of Nebat had committed and led the people of Israel to commit. King Mesha of Moab was a sheep breeder. He used to pay the king of Israel an annual tribute of 100,000 lambs and the wool of 100,000 rams. But after Ahab’s death, the king of Moab rebelled against the king of Israel. So King Joram promptly mustered the army of Israel and marched from Samaria. On the way, he sent this message to King Jehoshaphat of Judah: “The king of Moab has rebelled against me. Will you join me in battle against him?” And Jehoshaphat replied, “Why, of course! You and I are as one. My troops are your troops, and my horses are your horses.”