Deuteronomy 4:40-42

Revised Standard Version

⁴⁰ Therefore you shall keep his statutes and his commandments, which I command you this day, that it may go well with you, and with your children after you, and that you may prolong your days in the land which the Lord your God gives you for ever.”

Cities of Refuge East of the Jordan

⁴¹ Then Moses set apart three cities in the east beyond the Jordan, ⁴² that the manslayer might flee there, who kills his neighbor unintentionally, without being at enmity with him in time past, and that by fleeing to one of these cities he might save his life: