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 7:29-34

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!