Numbers 4:27
King James Version
“At the appointment of Aaron and his sons shall be all the service of the sons of the Gershonites, in all their burdens, and in all their service: and ye shall appoint unto them in charge all their burdens.”
Context
24This the service of the families of the Gershonites, to serve, and for burdens:
25And they shall bear the curtains of the tabernacle, and the tabernacle of the congregation, his covering, and the covering of the badgers’ skins that above upon it, and the hanging for the door of the tabernacle of the congregation,
26And the hangings of the court, and the hanging for the door of the gate of the court, which by the tabernacle and by the altar round about, and their cords, and all the instruments of their service, and all that is made for them: so shall they serve.
27At the appointment of Aaron and his sons shall be all the service of the sons of the Gershonites, in all their burdens, and in all their service: and ye shall appoint unto them in charge all their burdens.
28This is the service of the families of the sons of Gershon in the tabernacle of the congregation: and their charge under the hand of Ithamar the son of Aaron the priest.
29As for the sons of Merari, thou shalt number them after their families, by the house of their fathers;
30From thirty years old and upward even unto fifty years old shalt thou number them, every one that entereth into the service, to do the work of the tabernacle of the congregation.