Numbers 3:15-17

New Revised Standard Version, Anglicised

¹⁵ Enrol the Levites by ancestral houses and by clans. You shall enrol every male from a month old and upwards. ¹⁶ So Moses enrolled them according to the word of the Lord, as he was commanded. ¹⁷ The following were the sons of Levi, by their names: Gershon, Kohath, and Merari.