31 Then Hezekiah answered and said, "Now that you have consecrated yourselves to the Lord, come near, and bring sacrifices and thank offerings into the house of the Lord." So the assembly brought in sacrifices and thank offerings, and as many as were of a willing heart brought burnt offerings. 32 And the number of the burnt offerings which the assembly brought was seventy bulls, one hundred rams, and two hundred lambs; all these were for a burnt offering to the Lord. 33 The consecrated things were six hundred bulls and three thousand sheep. 34 But the priests were too few, so that they could not skin all the burnt offerings; therefore their brethren the Levites helped them until the work was ended and until the other priests had sanctified themselves, for the Levites were more diligent in sanctifying themselves than the priests. 35 Also the burnt offerings were in abundance, with the fat of the peace offerings and with the drink offerings for every burnt offering. So the service of the house of the Lord was set in order.

Matthew Henry's Commentary on 2 Chronicles 29:31-35

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.