This rite, together with that of "heaving" or "raising" the offering was an inseparable accompaniment of peace offerings. In such the right shoulder, considered the choicest part of the victim, was to be ("heaved," and viewed as holy to the Lord, only eaten therefore by the priest: the breast was to be "waved," and eaten by the worshipper. The scriptural notices of these rites are to be found in (Exodus 29:24,28; Leviticus 7:30,34; 8:27; 9:21; 10:14,15; 23:10,15,20; Numbers 6:20; 18:11,18,26-29) etc. In conjecturing the meaning of this rite, regard must be had that it was the accompaniment of peace offerings, which were witnesses to a ratified covenant--an established communion between God and man.
Main reference: Smith's Bible Dictionary (1860s)
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