If the one looking for revenge follows you there, the people of the city must not hand you over to that one. They must protect you because you killed the person accidentally and not out of anger.
to tell the people of Israel that anyone who sinned and broke any of the Lord's commands without intending to, would have to observe the following rules.
You are guilty only of manslaughter, and the community is to rescue you from the dead person's relative, and they are to return you to the city of refuge to which you had escaped. You must live there until the death of the man who is then High Priest.