Numbers 4:29 YLT

²⁷  'By the command of Aaron and his sons is all the service of the sons of the Gershonite in all their burden, and in all their service; and ye have laid a charge on them concerning the charge of all their burden.

²⁸  This 'is' the service of the families of the sons of the Gershonite in the tent of meeting; and their charge 'is' under the hand of Ithamar son of Aaron the priest.

²⁹  'The sons of Merari, by their families, by the house of their fathers, thou dost number them;

³⁰  from a son of thirty years and upward even unto a son of fifty years thou dost number them, every one who is going in to the host, to do the service of the tent of meeting.

³¹  'And this 'is' the charge of their burden, of all their service in the tent of meeting; the boards of the tabernacle, and its bars, and its pillars, and its sockets,