Numbers 4:31

4:31 This is what they are responsible to carry as their entire service in the tent of meeting: the frames of the tabernacle, its crossbars, its posts, its sockets,

Numbers 7:7

7:7 He gave two carts and four oxen to the Gershonites, as their service required;

Numbers 7:9

7:9 But to the Kohathites he gave none, because the service of the holy things, which they carried on their shoulders, was their responsibility.

Numbers 8:25

8:25 and at the age of fifty years they must retire from performing the work and may no longer work.

Numbers 28:18

28:18 And on the first day there is to be a holy assembly; you must do no ordinary work on it.

Numbers 28:25

28:25 On the seventh day you are to have a holy assembly, you must do no regular work.

Numbers 29:35

29:35 “‘On the eighth day you are to have a holy assembly; you must do no ordinary work on it.