Numbers 4:2 WBT

¹  And the LORD spoke to Moses and to Aaron, saying,

²  Take the sum of the sons of Kohath from among the sons of Levi, after their families, by the house of their fathers;

³  From thirty years old and upward, even until fifty years old, all that enter into the host, to do the work in the tabernacle of the congregation.

⁴  This [shall be] the service of the sons of Kohath in the tabernacle of the congregation, [about] the most holy things.