2 Chronicles 29:25 in the King James Version
And he set the Levites in the house of the LORD with cymbals, with psalteries, and with harps, according to the commandment of David, and of Gad the king’s seer, and Nathan the prophet: for so was the commandment of the LORD by his prophets.
Context
24 Then the priests killed them, and they made a sin offering with their blood on the altar, to make atonement for all Israel; for the king commanded that the burnt offering and the sin offering should be made for all Israel.
25 He set the Levites in the LORD’s house with cymbals, with stringed instruments, and with harps, according to the commandment of David, of Gad the king’s seer, and Nathan the prophet; for the commandment was from the LORD by his prophets.
26 The Levites stood with David’s instruments, and the priests with the trumpets.