They appointed the priests in their divisions and the Levites in their orders for the service of God in Jerusalem, as it had been written in the Book of Moses.
Then David and the officers of the army also set apart for the service some of the sons of Asaph, and of Heman, and of Jeduthun, those who prophesied with lyres, harps, and cymbals. The number of those who did the work according to their service was:
The priests stood at their positions, with the Levites and all their instruments of music for the Lord that King David had made to praise the Lord—for His mercy endures forever—when David gave praise by their ministry, and the priests sounded trumpets opposite the Levites, and all Israel stood.