Then Moses set aside three cities on the east side of the Jordan River.
“Six of the cities you give the Levites will be cities of refuge. You must allow murderers to escape to these cities. In addition, you must also give the Levites 42 other cities.
Never move your neighbor’s original boundary marker on any property in the land that the Lord your God is giving you.
When all this is done, set aside three cities in the land that the Lord your God is giving you.
This is why I’m commanding you to set aside three cities for yourselves.
Those who unintentionally killed someone whom they had never hated could flee to one of these cities and save their lives.