2 Chronicles 20:19-21

Thomson(i) 19 the Levites of the sons of Kaath, and of the sons of Kore, stood up to praise the Lord God of Israel, in the loudest strains. 20 And they arose early in the morning, and went out to the wilderness of Thekoe. And as they were marching out, Josaphat stood and cried with a loud voice, and said, Hear me, Juda, and ye inhabitants of Jerusalem. Trust in the Lord our God, and you shall be confirmed in your confidence. Confide in his prophet, and you shall prosper. 21 Then he consulted with the people, and appointed the musicians, and them who sing praises, to give thanks and to sing the holy songs of praise. So marching at the head of the army, they sung the hymn, praise the Lord, for his mercy endureth forever.