Numbers 4:27
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.
Cross-references
Numbers 4:24
Parallel
Numbers 4:24 specifies the Gershonites' duty of carrying — this verse also describes their service, creating a direct contextual link.
Numbers 4:33
Parallel
Numbers 4:33 assigns Merarites' duties under Ithamar, paralleling the Gershonites' assignment under Aaron's sons in 4:27.
Numbers 3:32
Parallel
Numbers 3:32 names Eleazar as chief over sanctuary leaders — this verse mentions Aaron and his sons directing, so both involve Levitical leadership hierarchy.