2 Kings 3:4-7

4Now Mesha king of Moab was a sheep breeder,1 and he would render to the king of Israel a hundred thousand lambs and the wool of a hundred thousand rams. 5But after the death of Ahab, the king of Moab rebelled against the king of Israel. 6So at that time King Jehoram set out from Samaria and mobilized all Israel. 7And he sent a message to Jehoshaphat king of Judah: “The king of Moab has rebelled against me. Will you go with me to fight against Moab?”

“I will go,” replied Jehoshaphat. “I am as you are, my people are your people, and my horses are your horses.”