2 Chronicles 20:22-28

At the very moment they began to sing and give praise, the LORD caused the armies of Ammon, Moab, and Mount Seir to start fighting among themselves. The armies of Moab and Ammon turned against their allies from Mount Seir and killed every one of them. After they had destroyed the army of Seir, they began attacking each other. So when the army of Judah arrived at the lookout point in the wilderness, all they saw were dead bodies lying on the ground as far as they could see. Not a single one of the enemy had escaped. King Jehoshaphat and his men went out to gather the plunder. They found vast amounts of equipment, clothing, and other valuables—more than they could carry. There was so much plunder that it took them three days just to collect it all! On the fourth day they gathered in the Valley of Blessing, which got its name that day because the people praised and thanked the LORD there. It is still called the Valley of Blessing today. Then all the men returned to Jerusalem, with Jehoshaphat leading them, overjoyed that the LORD had given them victory over their enemies. They marched into Jerusalem to the music of harps, lyres, and trumpets, and they proceeded to the Temple of the LORD.