New Defender's Study Bible Notes
18:2 joined unto thee. With both the priesthood and tabernacle service presumably settled once and for all, God reviews their responsibilities and privileges in this chapter.
18:8 heave-offerings. The heave offerings were the “right shoulders” (probably the thighs) of sacrificial animals of the peace offerings, so-called because they were “heaved off” the animals when they were slain, and they were to be given to the priests (Leviticus 7:14).
18:9 oblation. See note on Leviticus 2:4.
18:11 wave-offerings. The wave offerings, also reserved for the priests, consisted of the breasts of the animals offered in sacrifice (Leviticus 7:30,31). When it was removed from the animal, it was “waved” toward the altar, then back toward the priest.
18:21 for an inheritance. The Levites were not to be given a portion of the land in Canaan, once it had been conquered, such as the other tribes would have, and neither were the priests (Numbers 18:20). However, the Levites were to receive a tithe of all the increase of the other tribes, and they in turn were to render a tithe of their income for the support of the priests (Numbers 18:26-27).