Joshua 21:33 in the King James Version
All the cities of the Gershonites according to their families were thirteen cities with their suburbs.
Context
32 Out of the tribe of Naphtali, Kedesh in Galilee with its pasture lands, the city of refuge for the man slayer, Hammothdor with its pasture lands, and Kartan with its pasture lands: three cities.
33 All the cities of the Gershonites according to their families were thirteen cities with their pasture lands.
34 To the families of the children of Merari, the rest of the Levites, out of the tribe of Zebulun, Jokneam with its pasture lands, Kartah with its pasture lands,