Then Aaron’s sons shall burn it on the altar on top of the burnt offering, which is on the wood on the fire; it is a food offering with a pleasing aroma to the LORD.
The burnt-offerings had regard to God as in himself the best of beings, most perfect and excellent; they were purely expressive of adoration, and therefore were wholly burnt. But the peace-offerings had regard to God as a benefactor to his creatures, and the giver of all good things to us; and therefore these were divided between the altar, the priest, and the owner. Peace signifies, 1. Reconciliation, concord, and communion.
Commenting on Leviticus 3:1-5
And Aaron's sons shall burn it on the altar,.... That is, the fat of the several parts before mentioned; this signified the sufferings of Christ, by which our peace is made, and by whose death we are reconciled to God: this rite of burning the fat of the inwards of sacrifices was used by the Pagans, and is still retained by the idolatrous Indians to...
Aaron's sons shall burn it - As the fat was deemed the most valuable part of the animal, it was offered in preference to all other parts; and the heathens probably borrowed this custom from the Jews, for they burnt the omentum or caul in honor of their gods.