Ezra 2:63

And the remnant of the meat offering shall be Aaron's and his sons': it is a thing most holy of the offerings of the LORD made by fire.

It shall not be baked with leaven. I have given it unto them for their portion of my offerings made by fire; it is most holy, as is the sin offering, and as the trespass offering.

But if the sacrifice of his offering be a vow, or a voluntary offering, it shall be eaten the same day that he offereth his sacrifice: and on the morrow also the remainder of it shall be eaten:

Wherefore have ye not eaten the sin offering in the holy place, seeing it is most holy, and God hath given it you to bear the iniquity of the congregation, to make atonement for them before the LORD?

Speak unto Aaron and to his sons, that they separate themselves from the holy things of the children of Israel, and that they profane not my holy name in those things which they hallow unto me: I am the LORD. Say unto them, Whosoever he be of all your seed among your generations, that goeth unto the holy things, which the children of Israel hallow unto the LORD, having his uncleanness upon him, that soul shall be cut off from my presence: I am the LORD. What man soever of the seed of Aaron is a leper, or hath a running issue; he shall not eat of the holy things, until he be clean. And whoso toucheth any thing that is unclean by the dead, or a man whose seed goeth from him; Or whosoever toucheth any creeping thing, whereby he may be made unclean, or a man of whom he may take uncleanness, whatsoever uncleanness he hath; The soul which hath touched any such shall be unclean until even, and shall not eat of the holy things, unless he wash his flesh with water. And when the sun is down, he shall be clean, and shall afterward eat of the holy things; because it is his food. That which dieth of itself, or is torn with beasts, he shall not eat to defile himself therewith; I am the LORD. They shall therefore keep mine ordinance, lest they bear sin for it, and die therefore, if they profane it: I the LORD do sanctify them. There shall no stranger eat of the holy thing: a sojourner of the priest, or an hired servant, shall not eat of the holy thing. But if the priest buy any soul with his money, he shall eat of it, and he that is born in his house: they shall eat of his meat. If the priest's daughter also be married unto a stranger, she may not eat of an offering of the holy things. But if the priest's daughter be a widow, or divorced, and have no child, and is returned unto her father's house, as in her youth, she shall eat of her father's meat: but there shall be no stranger eat thereof. And if a man eat of the holy thing unwittingly, then he shall put the fifth part thereof unto it, and shall give it unto the priest with the holy thing. And they shall not profane the holy things of the children of Israel, which they offer unto the LORD; Or suffer them to bear the iniquity of trespass, when they eat their holy things: for I the LORD do sanctify them.

This shall be thine of the most holy things, reserved from the fire: every oblation of theirs, every meat offering of theirs, and every sin offering of theirs, and every trespass offering of theirs which they shall render unto me, shall be most holy for thee and for thy sons. In the most holy place shalt thou eat it; every male shall eat it: it shall be holy unto thee. And this is thine; the heave offering of their gift, with all the wave offerings of the children of Israel: I have given them unto thee, and to thy sons and to thy daughters with thee, by a statute for ever: every one that is clean in thy house shall eat of it.