Deuteronomy 19:1-3

New Century Version

Cities of Safety

19 When the Lord your God gives you land that belongs to the other nations, nations that he will destroy, you will force them out and live in their cities and houses. ² Then choose three cities in the middle of the land the Lord your God is giving you as your own. ³ Build roads to these cities, and divide the land the Lord is giving you into three parts so that someone who kills another person may run to these cities.