Joshua 20:8-9

And beyond the Jordan east of Jericho, they appointed Bezer in the wilderness on the tableland, from the tribe of Reuben, and Ramoth in Gilead, from the tribe of Gad, and Golan in Bashan, from the tribe of Manasseh. These were the cities designated for all the people of Israel and for the stranger sojourning among them, that anyone who killed a person without intent could flee there, so that he might not die by the hand of the avenger of blood, till he stood before the congregation.