21 And he took counsel with the people, and set appointed men to sing psalms and praises, to give thanks, and sing the holy songs of praise in going forth before the host: and they said, Give thanks to the Lord, for his mercy endures for ever.

22 And when they began the praise and thanksgiving, the Lord caused the children of Ammon to fight against Moab, and the inhabitants of mount Seir that came out against Juda; and they were routed.