20 But the soul that eateth the flesh of the sacrifice of peace-offering which is for Jehovah, having his uncleanness upon him, that soul shall be cut off from his peoples. 21 And if any one touch anything unclean, the uncleanness of man, or unclean beast, or any unclean abomination, and eat of the flesh of the sacrifice of peace-offering, which is for Jehovah, that soul shall be cut off from his peoples. 22 And Jehovah spoke to Moses, saying, 23 Speak unto the children of Israel, saying, No fat, of ox, or of sheep, or of goat shall ye eat. 24 But the fat of a dead carcase, and the fat of that which is torn, may be used in any other use; but ye shall in no wise eat it. 25 For whoever eateth the fat of the beast of which men present an offering by fire to Jehovah, the soul that hath eaten shall be cut off from his peoples. 26 And no blood shall ye eat in any of your dwellings, whether it be of fowl or of cattle. 27 Whatever soul it be that eateth any manner of blood, that soul shall be cut off from his peoples. 28 And Jehovah spoke to Moses, saying, 29 Speak unto the children of Israel, saying, He that presenteth the sacrifice of his peace-offering to Jehovah shall bring his offering to Jehovah of the sacrifice of his peace-offering. 30 His own hands shall bring Jehovah's offerings by fire, the fat with the breast shall he bring: the breast, that it may be waved as a wave-offering before Jehovah. 31 And the priest shall burn the fat on the altar; and the breast shall be Aaron's and his sons'. 32 And the right shoulder of the sacrifices of your peace-offerings shall ye give as a heave-offering unto the priest. 33 He of the sons of Aaron that presenteth the blood of the peace-offerings, and the fat, shall have the right shoulder for [his] part. 34 For the breast of the wave-offering, and the shoulder of the heave-offering, have I taken of the children of Israel from the sacrifices of their peace-offerings, and have given them unto Aaron the priest and unto his sons from the children of Israel by an everlasting statute.

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!