Numbers 18:1-5

¹And Jehovah saith unto Aaron, 'Thou, and thy sons, and the house of thy father with thee, do bear the iniquity of the sanctuary; and thou, and thy sons with thee, do bear the iniquity of your priesthood;

²and also thy brethren, the tribe of Levi, the tribe of thy father, bring near with thee, and they are joined unto thee, and serve thee, even thou and thy sons with thee, before the tent of the testimony.

³'And they have kept thy charge, and the charge of all the tent; only, unto the vessels of the sanctuary and unto the altar they do not come near, and they die not, either they or you;

⁴and they have been joined unto thee, and have kept the charge of the tent of meeting, for all the service of the tent; and a stranger doth not come near unto you;

⁵and ye have kept the charge of the sanctuary, and the charge of the altar, and there is no more wrath against the sons of Israel.