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.

34-36. the priests were too few, … wherefore their brethren the Levites did help them—The skins of beasts intended as peace offerings might be taken off by the officers, because, in such cases, the carcass was not wholly laid upon the altar; but animals meant for burnt offerings which were wholly consumed by fire could be flayed by the priests alone, not even the Levites being allowed to touch them, except in cases of unavoidable necessity (2Ch 35:11). The duty being assigned by the law to the priests (Le 1:6), was construed by consuetudinary practice as an exclusion of all others not connected with the Aaronic family.

for the Levites were more upright in heart to sanctify themselves than the priests—that is, displayed greater alacrity than the priests. This service was hastened by the irrepressible solicitude of the king. Whether it was that many of the priests, being absent in the country, had not arrived in time—whether from the long interruption of the public duties, some of them had relaxed in their wonted attentions to personal cleanliness, and had many preparations to make—or whether from some having participated in the idolatrous services introduced by Ahaz, they were backward in repairing to the temple—a reflection does seem to be cast upon their order as dilatory and not universally ready for duty (compare 2Ch 30:15). Thus was the newly consecrated temple reopened to the no small joy of the pious king and all the people.