Lev 21.22 He shall eat the bread of his God, both of the most holy, and of the holy.
Num 18.11-13 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.