Numbers 35:6-8

International Standard Version

⁶ You are to set aside six towns of refuge from the towns that you will be giving to the descendants of Levi, where someone who kills a human being may run for shelter. In addition, give them 42 other towns. ⁷ The total number of towns that you are to give to the descendants of Levi is to be 48 towns, including grazing lands surrounding these towns. ⁸ You are to apportion the towns that you will be giving the Israelis according to the relative size of the tribe. Take a larger portion from those larger in number and a lesser portion from those fewer in number. Each is to set aside towns for the descendants of Levi proportional to the size of their inheritance that they receive.”