Joshua 21:27

21:27 They assigned to the Gershonite clans of the Levites the following cities: from the half-tribe of Manasseh: Golan in Bashan (a city of refuge for one who committed manslaughter) and Beeshtarah, along with the grazing areas of each – a total of two cities;

Joshua 21:1

Levitical Cities

21:1 The tribal leaders of the Levites went before Eleazar the priest and Joshua son of Nun and the Israelite tribal leaders

Joshua 6:1

6:1 Now Jericho was shut tightly because of the Israelites. No one was allowed to leave or enter.