Numbers 35:13

¹¹And ye shall appoint to yourselves cities: they shall be to you cities of refuge for the slayer to flee to, everyone who has killed another unintentionally.

¹²And the cities shall be to you places of refuge from the avenger of blood, and the slayer shall not die until he stands before the congregation for judgment.

— Numbers 35:13 —

¹⁴Ye shall assign three cities on the other side of Jordan, and ye shall assign three cities in the land of Canaan.

¹⁵It shall be a place of refuge for the children of Israel, and for the stranger, and for him that sojourns among you; these cities shall be for a place of refuge, for every one to flee thither who has killed a man unintentionally.