In ancient times people often sought personal revenge for a murder, even if the homicide was unintentional. So God provided a safe haven for those who killed someone accidentally—a city of refuge where the offender would be protected from the avenger until a trial could be held.
How often we need that place of refuge! Intentionally or not, we sin all the time. We harbor angry, murderous thoughts. We lash out with our words. We cut someone else down to build ourselves up. Thank God that he provides a safe haven for us—Jesus, our living city of refuge.