What is the context of Joshua 21:17-18?

• Cities of Aaron’s Descendants (Joshua 21:9-19 true)
• Allocation for the Descendants of Kohath and Descendants of Gershon (Joshua 21:3-33 true)
• Cities of the Levites (Joshua 21:1-42 true)
• Cities and Pasturelands Allotted to Levi (Joshua 21:1-45 true)
• The Allotment of the Levites (Joshua 21:1-45 true)
• The Towns Given to the Levites (Joshua 21:1-45 true)
• Forty-eight Cities of the Levites (Joshua 21:1-45 true)
• Towns for the Levites (Joshua 21:1-45 true)