Charles Ellicott Commentary 2 Chronicles 35:12

"And they removed the burnt-offerings, that they might give them according to the divisions of the fathers` houses of the children of the people, to offer unto Jehovah, as it is written in the book of Moses. And so did they with the oxen." — 2 Chronicles 35:12 (ASV)

They removed. — They cut off those parts of the victims that had to be consumed on the altar of burnt offering. (Leviticus 4:31.) These parts are naturally called “the burnt offering,” although no special burnt offering was appointed for the evening of the Passover.

That they might give ... people. — To give them to the sections of the father-houses of the sons of the people. After separating the proper pieces, the Levites gave them to the sections that they were serving, to be presented in turn to the priests for burning on the altar.

To Offer. — Haqrîb; as in Leviticus 3:9; Leviticus 3:14.

As it is written. — Referring to the rule that all the fat is the Lord’s (Leviticus 3:16).

And so did they. — And so for the oxen. The proper portions of these also were separated for consumption on the brazen altar; the rest of the carcasses furnished food for the sacrificial festivities.