9. The only responsibility the Levites have is to serve Aaron and his sons.
10. You shall appoint Aaron and his sons to carry out the duties of the priesthood; anyone else who tries to do so shall be put to death.”
11. The Lord said to Moses,
14. In the Sinai Desert the Lord commanded Moses
15. to register the Levites by clans and families, enrolling every male a month old or older,
16. and Moses did so.
21. The clan of Gershon was composed of the families of Libni and Shimei.