Deuteronomy 19:7-9

Revised Standard Version

⁷ Therefore I command you, You shall set apart three cities. ⁸ And if the Lord your God enlarges your border, as he has sworn to your fathers, and gives you all the land which he promised to give to your fathers— ⁹ provided you are careful to keep all this commandment, which I command you this day, by loving the Lord your God and by walking ever in his ways—then you shall add three other cities to these three,