Leviticus 10:12 (KJV)

And that ye may put difference between holy and unholy, and between unclean and clean;

And that ye may teach the children of Israel all the statutes which the Lord hath spoken unto them by the hand of Moses.

And Moses spake unto Aaron, and unto Eleazar and unto Ithamar, his sons that were left, Take the meat offering that remaineth of the offerings of the Lord made by fire, and eat it without leaven beside the altar: for it is most holy:

And ye shall eat it in the holy place, because it is thy due, and thy sons’ due, of the sacrifices of the Lord made by fire: for so I am commanded.

And the wave breast and heave shoulder shall ye eat in a clean place; thou, and thy sons, and thy daughters with thee: for they be thy due, and thy sons’ due, which are given out of the sacrifices of peace offerings of the children of Israel.