Joshua 20:7-9

7So they set apart Kedesh in Galilee in the hill country of Naphtali, Shechem in the hill country of Ephraim, and Kiriath Arba (that is, Hebron) in the hill country of Judah. 8East of the Jordan (on the other side from Jericho) they designated Bezer in the wilderness on the plateau in the tribe of Reuben, Ramoth in Gilead in the tribe of Gad, and Golan in Bashan in the tribe of Manasseh. 9Any of the Israelites or any foreigner residing among them who killed someone accidentally could flee to these designated cities and not be killed by the avenger of blood prior to standing trial before the assembly.