Exodus 29
33 Ref All those things which were used as offerings to take away sin, and to make them holy to be priests, they may have for food: but no one who is not a priest may have them, for they are holy food.
34 Ref And if any of the flesh of the offering or of the bread is over till the morning, let it be burned with fire; it is not to be used for food, for it is holy.