NumNm NumbersNumeri, chaptercapitolo Book of NumbersLibro dei Numeri, chaptercapitolo 18

and also your brothers, the tribe of Levi, the tribe of your father, bring near with you, and they are joined to you, and serve you, even you and your sons with you, before the Tent of the Testimony. And they have kept your charge, and the charge of all the tent; only, they do not come near to the vessels of the holy place and to the altar, and they do not die, either they or yöu;