Yoshua 20:9

Mwisraeli yeyote au mgeni yeyote aishiye miongoni mwao aliyemuua mtu kwa bahati mbaya, angeweza kukimbilia katika miji mikubwa hiyo iliyotengwa na asiuawe na mlipiza kisasi wa damu kabla hajasimama kukabili mashtaka mbele ya kusanyiko.

These were the cities appointed for all the children of Israel, and for the stranger that sojourneth among them, that whosoever killeth any person at unawares might flee thither, and not die by the hand of the avenger of blood, until he stood before the congregation.