Deuteronomy 10:6-9

6(And the children of Israel took their journey from Beeroth-Bene-Jaakan to Moserah: there Aaron died, and there he was buried; and Eleazar his son exercised the priesthood in his stead.

7From thence they journeyed unto Gudgodah; and from Gudgodah to Jotbathah, a land of water-brooks.)

8At that time Jehovah separated the tribe of Levi, to bear the ark of the covenant of Jehovah, to stand before Jehovah to do service unto him, and to bless in his name, unto this day.

9Therefore Levi has no portion nor inheritance with his brethren; Jehovah is his inheritance, according as Jehovah thy 1God told him.