These cities will be places of protection from a dead person’s relatives who want to avenge the death. The slayer must not be put to death before being tried by the community.
“Six of the towns you give the Levites will be cities of refuge, where a person who has accidentally killed someone can flee for safety. In addition, give them forty-two other towns.
These cities were set apart for all the Israelites as well as the foreigners living among them. Anyone who accidentally killed another person could take refuge in one of these cities. In this way, they could escape being killed in revenge prior to standing trial before the local assembly.