Numbers 35:6-8

Amplified Bible

Cities of Refuge

⁶ [Among] the cities which you give to the Levites shall be the six cities of refuge, which you shall provide for the one who commits manslaughter to flee to; and in addition to them you shall give forty-two cities [to the Levites]. ⁷ So you shall give to the Levites forty-eight cities in all, together with their pasture lands. ⁸ As for the cities which you shall give from the possession of the Israelites, from the larger tribes you shall take many and from the smaller tribes few; each tribe shall give [at least some] of its cities to the Levites in proportion to [the size of] its inheritance which it possesses.”