en_tn_condensed/num/04/28.md

This is the service of the clans of the descendants of the Gershonites for the tent of meeting

Here the word "service" is an abstract noun that can be expressed by a verb. Here the word "This" refers to what Yahweh just said. Alternate translation: "This is how the clans of the descendants of the Gershonites will serve in the tent of meeting" (See: rc://en/ta/man/translate/figs-abstractnouns)

Ithamar

See how you translated this man's name in Numbers 1:2.