This verse lists the cities given to the descendants of Aaron, who were the priests of Israel. These cities were designated as places of residence and provision for the Levites, who were responsible for the service of the tabernacle and later the temple. The allocation of these cities highlights the importance of the priesthood and the need for proper care and support for those who served in the religious duties of the nation. It demonstrates God's provision and foresight in establishing a system that ensured the spiritual well-being of His people through the ministry of the priests.