And Solomon put the sorts of priests in companies as David his father had ordered them, unto the offices, and the Levites unto their wait, for to praise and minister before the priests day by day, and the porters by course at every gate. For so had David the man of God commanded.

And they set the Levites in the house of the LORD with cymbals, psalteries and harps according to the commandments of David and of Gad the king's seer of visions and of Nathan the prophet. For so was the commandment of the LORD through the hand, of his prophets.