Numbers 18:9-11

⁹This shall be yours from the most holy gifts reserved from the fire; every offering of theirs, even every grain offering and every sin offering and every guilt offering, which they shall render to Me, shall be most holy for you and for your sons. ¹⁰As the most holy gifts you shall eat it; every male shall eat it. It shall be holy to you. ¹¹This also is yours, the offering of their gift, even all the wave offerings of the sons of Israel; I have given them to you and to your sons and daughters with you as a perpetual allotment. Everyone of your household who is clean may eat it.