Numbers 4:29-33 - Duties Of The Merarites

²⁹ "As for the sons of Merari, you shall number them by their families, by their fathers' houses; ³⁰ you shall count them from thirty years old and upward even to fifty years old, everyone who enters on the service, to do the work of the Tent of Meeting. ³¹ This is the duty of their burden, according to all their service in the Tent of Meeting: the tabernacle's boards, its bars, its pillars, its sockets, ³² and the pillars of the court around it, and their sockets, and their pins, and their cords, with all their instruments, and with all their service: and by name you shall appoint the instruments of the duty of their burden. ³³ This is the service of the families of the sons of Merari, according to all their service, in the Tent of Meeting, under the hand of Ithamar the son of Aaron the priest."