These six cities shall be for refuge for the children of Israel, for the stranger, and for the sojourner among them, that anyone who kills a person accidentally may flee there.
Numbers 35:15
Surrounding context
35:14 You shall appoint three cities on this side of the Jordan, and three cities you shall appoint in the land of Canaan, which will be cities of refuge.
35:15 These six cities shall be for refuge for the children of Israel, for the stranger, and for the sojourner among them, that anyone who kills a person accidentally may flee there.
35:16 "But if he strikes him with an iron implement, so that he dies, he is a murderer; the murderer shall surely be put to death.