Numbers 35:2-8

2“Command the sons of Israel that they give to the Levites from the inheritance of their possession cities to live in; and you shall give to the Levites pasture lands around the cities. 3The cities shall be theirs to live in; and their pasture lands shall be for their cattle and for their herds and for all their beasts.

4“The pasture lands of the cities which you shall give to the Levites shall extend from the wall of the city 1outward a thousand cubits around. 5You shall also measure outside the city on the east side two thousand cubits, and on the south side two thousand cubits, and on the west side two thousand cubits, and on the north side two thousand cubits, with the city in the center. This shall become theirs as pasture lands for the cities. 6The cities which you shall give to the Levites shall be the 2six cities of refuge, which you shall give for the manslayer to flee to; and in addition to them you shall give forty-two cities. 7All the cities which you shall give to the Levites shall be 3forty-eight cities, 4together with their pasture lands. 85As for the cities which you shall give from the possession of the sons of Israel, you shall take more from the larger and you shall take less from the smaller; each shall give some of his cities to the Levites in proportion to his possession which he inherits.”