John Wesley on Leviticus 7:29

Shall bring - Not by another, but by himself, that is, those parts of the peace - offering, which are in a special manner offered to God. His oblation unto the Lord - That is, to the tabernacle, where the Lord was present in a special manner. Though part of such offerings might be eaten in any clean place, Lev 10:14, yet not till they had been killed, and part of them offered to the Lord in the place appointed by him for that purpose.