Numbers 35:6-8

New Revised Standard Version, Anglicised Catholic Edition

⁶ The towns that you give to the Levites shall include the six cities of refuge, where you shall permit a slayer to flee, and in addition to them you shall give forty-two towns. ⁷ The towns that you give to the Levites shall total forty-eight, with their pasture lands. ⁸ And as for the towns that you shall give from the possession of the Israelites, from the larger tribes you shall take many, and from the smaller tribes you shall take few; each, in proportion to the inheritance that it obtains, shall give of its towns to the Levites.