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.