Numbers 35:6-8

Contemporary English Version

⁶ Six of the towns you give them will be Safe Towns where a person who has accidentally killed someone can run for protection. But you will also give the Levites 42 other towns, ⁷ so they will have a total of 48 towns with their surrounding pastures.

⁸ Since the towns for the Levites must come from Israel's own tribal lands, the larger tribes will give more towns than the smaller ones.