13. For all the firstborn are Mine; on the day that I struck down all the firstborn in the land of Egypt, I sanctified to Myself all the firstborn in Israel, from man to beast. They shall be Mine; I am the Lord."
14. Then the Lord spoke to Moses in the wilderness of Sinai, saying,
15. "Number the sons of Levi by their fathers' households, by their families; every male from a month old and upward you shall number."
16. So Moses numbered them according to the word of the Lord, just as he had been commanded.
17. These then are the sons of Levi by their names: Gershon and Kohath and Merari.
18. These are the names of the sons of Gershon by their families: Libni and Shimei;
19. and the sons of Kohath by their families: Amram and Izhar, Hebron and Uzziel;