Numbers 3:7 ASV

⁵  And Jehovah spake unto Moses, saying,

⁶  Bring the tribe of Levi near, and set them before Aaron the priest, that they may minister unto him.

⁷  And they shall keep his charge, and the charge of the whole congregation before the tent of meeting, to do the service of the tabernacle.

⁸  And they shall keep all the furniture of the tent of meeting, and the charge of the children of Israel, to do the service of the tabernacle.

⁹  And thou shalt give the Levites unto Aaron and to his sons: they are wholly given unto him on the behalf of the children of Israel.