Numbers 4:27
27All the service of the Gershonites is to be done at the direction of Aaron and his sons—all their transport duties and other work—you are to assign to them all that they are responsible to carry.
27All the service of the Gershonites is to be done at the direction of Aaron and his sons—all their transport duties and other work—you are to assign to them all that they are responsible to carry.