Joshua 20:3-5

Living Bible

³ If a man is guilty of killing someone unintentionally, he can run to one of these cities and be protected from the relatives of the dead man, who may try to kill him in revenge. ⁴ When the innocent killer reaches any of these cities, he will meet with the city council and explain what happened, and they must let him come in and must give him a place to live among them. ⁵ If a relative of the dead man comes to kill him in revenge, the innocent slayer must not be released to him for the death was accidental.