Charles Ellicott Commentary Leviticus 7:5

"and the priest shall burn them upon the altar for an offering made by fire unto Jehovah: it is a trespass-offering." — Leviticus 7:5 (ASV)

And the priest shall burn. — These fat pieces he shall burn, as in the case of the sin offering and peace offering (Leviticus 4:26; Leviticus 4:31).