Numbers 3:6-9

6 aBring the tribe of Levi near, and set them before Aaron the priest, that they may minister to him. 7They shall keep guard over him and over the whole congregation before the tent of meeting, bas they minister at the tabernacle. 8They shall guard all the furnishings of the tent of meeting, and keep guard over the people of Israel as they minister at the tabernacle. 9And cyou shall give the Levites to Aaron and his sons; they are dwholly given to him from among the people of Israel.
Copyright information for ESV