2 Chronicles 20:20-26

²⁰ They rose early in the morning and went out into the wilderness of Tekoa; and as they went out, Jehoshaphat stood and said, "Listen to me, O Judah and inhabitants of Jerusalem! Believe in the Lord your God and you will be established; believe his prophets." ²¹ When he had taken counsel with the people, he appointed those who were to sing to the Lord and praise him in holy splendor, as they went before the army, saying, "Give thanks to the Lord, for his steadfast love endures forever." ²² As they began to sing and praise, the Lord set an ambush against the Ammonites, Moab, and Mount Seir, who had come against Judah, so that they were routed. ²³ For the Ammonites and Moab attacked the inhabitants of Mount Seir, destroying them utterly; and when they had made an end of the inhabitants of Seir, they all helped to destroy one another. ²⁴ When Judah came to the watchtower of the wilderness, they looked toward the multitude; they were corpses lying on the ground; no one had escaped. ²⁵ When Jehoshaphat and his people came to take the booty from them, they found livestock in great numbers, goods, clothing, and precious things, which they took for themselves until they could carry no more. They spent three days taking the booty, because of its abundance. ²⁶ On the fourth day they assembled in the Valley of Beracah, for there they blessed the Lord; therefore that place has been called the Valley of Beracah to this day.