Numbers 3:8-10

Complete Jewish Bible

⁸ They are to be in charge of all the furnishings of the tent of meeting and to carry out all the duties of the people of Isra’el connected with the service of the tabernacle. ⁹ Assign the L’vi’im to Aharon and his sons; their one responsibility in regard to the people of Isra’el is to serve him. ¹⁰ You are to appoint Aharon and his sons to carry out the duties of cohanim; anyone else who involves himself is to be put to death.”