Numbers 18:5-13

⁵And they shall keep charge of the sanctuary and of the altar, that there may be no more wrath upon the sons of Israel.

⁶And, behold, I have taken your brethren, the Levites, from among the sons of Israel; as a gift are they given to you before the Lord, to perform the service of the tabernacle of ordinance.

⁷But thou, and thy sons with thee, take charge of your priesthood, for everything about the altar and within the veil you shall fulfil the service; the ministry of the priesthood I have given you as a gift, and the stranger who cometh near shall die.

⁸And the Lord said to Aharon: Behold, I have given to thee the charge of My separated things; of all that are consecrated by the sons of Israel unto thee have I given them, and to thy sons, on account of the anointing, by an everlasting statute.

⁹This shall be thine of the most holy things which remain from the fire, of all their oblations, and of all their minchas, and of all their sin offerings, and of all their trespass offerings which they render before Me; they are most sacred to thee and to thy sons.

¹⁰In the sanctuary thou mayest eat thereof, every male may eat it, to thee it shall be consecrated.

¹¹And this is thine: the separated things of their minchas, of all the elevations of the sons of Israel, to thee have I given them, and to thy sons, and to thy daughters with thee, by an everlasting statute: everyone who is clean in thy house may eat thereof.

¹²All the best of the oil, and all the best of the wine, and the wheat, the firstfruits of them which they present before the Lord, unto thee I have given them.

¹³The firstfruits of all that is on their land which they present before the Lord shall be thine; everyone in thy house who is clean may eat thereof.