Numbers 35:5-8

The Voice

⁵ In other words, with the city at the center, the fields designated for the Levites should encompass a territory with a radius of 3,000 feet.

^6-8 Make sure they are allocated according to the size of the territory that each group has. The biggest families will give the greatest number of towns; the smaller tribes only a few. Included among the Levites’ towns, 48 in total, shall be the six cities of refuge to where a person who killed someone by accident can run for safety from revenge, along with 42 other cities.