The families of the Gershonites were to camp behind the tabernacle toward the west.

This is the service of the families of Gershonites, as they serve ¹  and carry it.

From Gershon came the family of the Libnites and the family of the Shimeites; these were the families of the Gershonites.

This is the service of the families of the Gershonites concerning the tent of meeting. Their responsibilities will be under the authority ¹  of Ithamar son of Aaron the priest. ² 

And these are the Levites who were numbered according to their families: from Gershon, the family of the Gershonites; of Kohath, the family of the Kohathites; from Merari, the family of the Merarites.

“All the service of the Gershonites, whether ¹  carrying loads ²  or for any of their work, will be at the direction of ³  Aaron and his sons. You will assign them all their tasks ⁴  as their responsibility.