Joshua 20:1-4

Then the Lord spoke to Joshua, saying,

“Speak to the sons of Israel, saying, ‘Designate the cities of refuge, of which I spoke to you through Moses,

so that one who commits manslaughter by killing a person unintentionally, without premeditation, may flee there, and they shall become your refuge from the avenger of blood.

Then he shall flee to one of these cities, and shall stand at the entrance of the gate of the city, and state his case in the presence of the elders of that city; and they shall receive him into the city to them and give him a place, so that he may remain among them.