24 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 He set the Levites in the house of Yahweh with cymbals, with stringed instruments, 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 The Levites stood with the instruments of David, and the priests with the trumpets.
Matthew Henry's Commentary on 2 Chronicles 29:24-26
Commentary on 2 Chronicles 29:20-36
(Read 2 Chronicles 29:20-36)
As soon as Hezekiah heard that the temple was ready, he lost no time. Atonement must be made for the sins of the last reign. It was not enough to lament and forsake those sins; they brought a sin-offering. Our repentance and reformation will not obtain pardon but in and through Christ, who was made sin, that is, a sin-offering for us. While the offerings were on the altar, the Levites sang. Sorrow for sin must not prevent us from praising God. The king and the congregation gave their consent to all that was done. It is not enough for us to be where God is worshipped, if we do not ourselves worship with the heart. And we should offer up our spiritual sacrifices of praise and thanksgiving, and devote ourselves and all we have, as sacrifices, acceptable to the Father only through the Redeemer.