Joshua 20:9
These were the cities appointed for all the children of Israel, and for the stranger that sojourns among them, that whosoever kills any person accidentally might flee there, and not die by the hand of the avenger of blood, until he stood before the congregation.
Numbers 35:15
These six cities shall be a refuge, both for the children of Israel, and for the stranger, and for the sojourner among them: that every one that kills any person unintentionally may flee there.
Joshua 20:4
And when he that does flee unto one of those cities shall stand at the entrance of the gate of the city, and shall declare his cause in the ears of the elders of that city, they shall take him into the city unto them, and give him a place, that he may dwell among them.
Joshua 20:6
And he shall dwell in that city, until he stands before the congregation for judgment, and until the death of the high priest that shall be in those days: then shall the slayer return, and come unto his own city, and unto his own house, unto the city from where he fled.