2 Chronicles 29
24 Ref and 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 Ref He set the Levites in the house of Yahweh 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 the commandment was of Yahweh by his prophets.
26 Ref The Levites stood with the instruments of David, and the priests with the trumpets.