“They shall keep his requirements, and the requirements of the whole congregation before the Tent of Meeting, to do the service of the tabernacle.”
Numbers 3:7 (WEB)
Context Reading
5Yahweh spoke to Moses, saying, 6“Bring the tribe of Levi near, and set them before Aaron the priest, that they may minister to him. 7They shall keep his requirements, and the requirements of the whole congregation before the Tent of Meeting, to do the service of the tabernacle. 8They shall keep all the furnishings of the Tent of Meeting, and the obligations of the children of Israel, to do the service of the tabernacle. 9You shall give the Levites to Aaron and to his sons. They are wholly given to him on the behalf of the children of Israel.