Leviticus 8:31

“And Moses said unto Aaron, and to his sons, etc.] After he had offered the bullock, the two rams, and cakes of unleavened bread for the consecration of them: boil the flesh at the door of the tabernacle of the congregation; the remainder of the flesh of the ram of consecration, which was all but the fat, the shoulder, and the breast: and there eat it with the bread that is in the basket of consecration; what was left of that, there being one cake of a sort taken out of it and burnt: as I commanded, saying, Aaron and his sons shall eat it; (see <022932>Exodus 29:32).”

“Moses as the mediator of the covenant of the Law Galatians 3:19; Hebrews 8:6 was called to perform the priestly functions, in consecrating those on whom henceforth those functions were to devolve, and in inaugurating the legal order of sacrifices. See Exodus 40:23 note. The sin-offering was now offered for the first time. The succession in which the sacrifices followed each other on this occasion, first the sin-offering, then the burnt-offering, and lastly the peace-offering, has its ground in the meaning of each sacrifice, and became the established custom in later ages. The worshipper passed through a spiritual process. He had transgressed the Law, and he needed the atonement signified by…”

“The flesh - That which was left of the ram, and particularly the breast, which was said to be Moses's part, Lev 8:29, and by him was given to Aaron, that he and his sons might eat of it, in token that they and only they should have the right to do so for the future. Leviticus 8:33”

“8:31 The ordination offering was a variation of the peace offering (Exod 29:28). It was a meal (Lev 7:11-18, 28-34) shared between God (the parts burned on the altar) and the priests. The command to boil . . . and eat the ordination offering first appears in Exod 29:32.”

“Boil: Lev 6:28, Lev 7:15; Exo 29:31, Exo 29:32; Deu 12:6, Deu 12:7; Sa1 2:13-17; Eze 46:20-24 eat it: Lev 10:17; Joh 6:33, Joh 6:35, Joh 6:51, Joh 6:53-56; Gal 2:20 Leviticus 8:32”