Deuteronomy 19:2-4

Tree of Life Version

² you are to set apart three cities for yourself within the land He is giving you to possess. ³ You are to prepare the way for yourself and divide into three parts the borders of your land that Adonai your God enables you to inherit, so that anyone who kills may flee there. ⁴ Now this is the case of the one who kills, who may flee there and live—whoever kills his neighbor unintentionally and did not hate him in the past—