20 but the person who eats of the flesh of the sacrifice of the Lord's peace offerings while an uncleanness is on him, that person shall be cut off from his people. 21 And if any one touches an unclean thing, whether the uncleanness of man or an unclean beast or any unclean abomination, and then eats of the flesh of the sacrifice of the Lord's peace offerings, that person shall be cut off from his people." 22 The Lord said to Moses, 23 "Say to the people of Israel, You shall eat no fat, of ox, or sheep, or goat. 24 The fat of an animal that dies of itself, and the fat of one that is torn by beasts, may be put to any other use, but on no account shall you eat it. 25 For every person who eats of the fat of an animal of which an offering by fire is made to the Lord shall be cut off from his people. 26 Moreover you shall eat no blood whatever, whether of fowl or of animal, in any of your dwellings. 27 Whoever eats any blood, that person shall be cut off from his people." 28 The Lord said to Moses, 29 "Say to the people of Israel, He that offers the sacrifice of his peace offerings to the Lord shall bring his offering to the Lord; from the sacrifice of his peace offerings 30 he shall bring with his own hands the offerings by fire to the Lord; he shall bring the fat with the breast, that the breast may be waved as a wave offering before the Lord. 31 The priest shall burn the fat on the altar, but the breast shall be for Aaron and his sons. 32 And the right thigh you shall give to the priest as an offering from the sacrifice of your peace offerings; 33 he among the sons of Aaron who offers the blood of the peace offerings and the fat shall have the right thigh for a portion. 34 For the breast that is waved and the thigh that is offered I have taken from the people of Israel, out of the sacrifices of their peace offerings, and have given them to Aaron the priest and to his sons, as a perpetual due from the people of Israel.

Matthew Henry's Commentary on Leviticus 7:20-34

Commentary on Leviticus 7:11-27

(Read Leviticus 7:11-27)

As to the peace-offerings, in the expression of their sense of mercy, God left them more at liberty, than in the expression of their sense of sin; that their sacrifices, being free-will offerings, might be the more acceptable, while, by obliging them to bring the sacrifices of atonement, God shows the necessity of the great Propitiation. The main reason why blood was forbidden of old, was because the Lord had appointed blood for an atonement. This use, being figurative, had its end in Christ, who by his death and blood-shedding caused the sacrifices to cease. Therefore this law is not now in force on believers.

Commentary on Leviticus 7:28-34

(Read Leviticus 7:28-34)

The priest who offered, was to have the breast and the right shoulder. When the sacrifice was killed, the offerer himself must present God's part of it; that he might signify his cheerfully giving it up to God. He was with his own hands to lift it up, in token of his regard to God as the God of heaven; and then to wave it to and fro, in token of his regard to God as the Lord of the whole earth. Be persuaded and encouraged to feed and feast upon Christ, our Peace-offering. This blessed Peace-offering is not for the priests only, for saints of the highest rank and greatest eminence, but for the common people also. Take heed of delay. Many think to repent and return to God when they are dying and dropping into hell; but they should eat the peace-offering, and eat it now. Stay not till the day of the Lord's patience be run out, for eating the third day will not be accepted, nor will catching at Christ when thou art gone to hell!