2 Chronicles 20
21 Ref When he had taken counsel with the people, he appointed those who should sing to Yahweh, and give praise in holy array, as they went out before the army, and say, Give thanks to Yahweh; for his loving kindness endures forever.
22 Ref When they began to sing and to praise, Yahweh set liers-in-wait against the children of Ammon, Moab, and Mount Seir, who had come against Judah; and they were struck.