Joshua 20:9
These were the cities appointed for all the sons of Israel and for the stranger that sojourns among them that anyone who kills any person by error might flee there and not die by the hand of the avenger of blood until he stands before the congregation.
Numbers 35:15
These six cities shall be a refuge, both for the sons of Israel and for the stranger and for the sojourner among them that anyone that kills another person unawares may flee there.
Joshua 20:4
And he that flees unto one of these cities shall present himself at the entering of the gate of the city and shall declare his cause in the ears of the elders of that city; they shall receive him into the city among 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 manslayer return, and come unto his own city and unto his own house unto the city from where he fled.