2 Kings 3:4-7

4Mesha, the king of Moab, was a sheep farmer. Every year he had to pay the king of Israel 100,000 male lambs and the wool from 100,000 male sheep.

5But after King Ahab died, the king of Moab turned against the king of Israel.

6So King Jehoram left Samaria to bring all Israel's army together. They were ready to attack Moab.

7He also sent this message to Jehoshaphat, the king of Judah: ‘The king of Moab has turned against me. Will you go with me to fight against the Moabites?’ Jehoshaphat replied, ‘Yes, I will go with you. We will have one army. My soldiers will join with your soldiers. My horses will be under your authority.’