28 The Lord spoke to Moses, saying, 29 "Speak to the people of Israel, saying, Whoever 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 His own hands shall bring the Lord's food offerings. 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 a contribution from the sacrifice of your peace offerings. 33 Whoever among the sons of Aaron 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 contributed 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.

35 This is the portion of Aaron and of his sons from the Lord's food offerings, from the day they were presented to serve as priests of the Lord. 36 The Lord commanded this to be given them by the people of Israel, from the day that he anointed them. It is a perpetual due throughout their generations." 37 This is the law of the burnt offering, of the grain offering, of the sin offering, of the guilt offering, of the ordination offering, and of the peace offering, 38 which the Lord commanded Moses on Mount Sinai, on the day that he commanded the people of Israel to bring their offerings to the Lord, in the wilderness of Sinai.

Matthew Henry's Commentary on Leviticus 7:28-38

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!

Commentary on Leviticus 7:35-38

(Read Leviticus 7:35-38)

Solemn acts of religious worship are not things which we may do or not do at our pleasure; it is at our peril if we omit them. An observance of the laws of Christ cannot be less necessary than of the laws of Moses.