Numbers 3:7-9

Amplified Bible, Classic Edition

⁷ And they shall carry out his instructions and the duties connected with the whole assembly before the Tent of Meeting, doing the service of the tabernacle.

⁸ And they shall keep all the instruments and furnishings of the Tent of Meeting and take charge of [attending] the Israelites, to serve in the tabernacle.

⁹ And you shall give the Levites [as servants and helpers] to Aaron and his sons; they are wholly given to him from among the Israelites.