TSK · Joshua 20:9

For the children of Israel, and for the stranger and for the foreigner living among them, shall these six cities be for refuge; that everyone who kills any person unwittingly may flee there.

He shall dwell in that city until he stands before the congregation for judgment, until the death of the high priest that shall be in those days. Then the manslayer shall return, and come to his own city, and to his own house, to the city he fled from.'"