2 Chronicles 20:20-26

²⁰ And they rose early in the morning and went out into the wilderness of Teko'a; and as they went out, Jehosh'aphat stood and said, "Hear me, Judah and inhabitants of Jerusalem! Believe in the Lord your God, and you will be established; believe his prophets, and you will succeed." ²¹ And when he had taken counsel with the people, he appointed those who were to sing to the Lord and praise him in holy array, as they went before the army, and say, "Give thanks to the Lord, for his steadfast love endures for ever." ²² And when they began to sing and praise, the Lord set an ambush against the men of Ammon, Moab, and Mount Se'ir, who had come against Judah, so that they were routed. ²³ For the men of Ammon and Moab rose against the inhabitants of Mount Se'ir, destroying them utterly, and when they had made an end of the inhabitants of Se'ir, they all helped to destroy one another. ²⁴ When Judah came to the watchtower of the wilderness, they looked toward the multitude; and behold, they were dead bodies lying on the ground; none had escaped. ²⁵ When Jehosh'aphat and his people came to take the spoil from them, they found cattle in great numbers, goods, clothing, and precious things, which they took for themselves until they could carry no more. They were three days in taking the spoil, it was so much. ²⁶ On the fourth day they assembled in the Valley of Bera'cah, for there they blessed the Lord; therefore the name of that place has been called the Valley of Bera'cah to this day.