Deuteronomy 19:2-13 you shall separate for yourself three cities in the midst of your land, which the Lord your God gives you.

LXX2012⁽ⁱ⁾ ² you shall separate for yourself three cities in the midst of your land, which the Lord your God gives you. ³ Take a survey of your way, and you shall divide the coasts of your land, which the Lord your God apportions to you, into three parts, and there shall be there a refuge for every manslayer. ⁴ And this shall be the ordinance of the manslayer, who shall flee there, and shall live, whoever shall have struck his neighbor ignorantly, whereas he hated him not in times past. ⁵ And whoever shall enter with his neighbor into the thicket, to gather wood, if the hand of him that cuts wood with the axe should be violently shaken, and the axe head falling off from the handle should light on his neighbor, and he should die, he shall flee to one of these cities, and live. ⁶ Lest the avenger of blood pursue after the slayer, because his heart is hot, and overtake him, if the way be too long, and kill him, though there is to this man no sentence of death, because he hated him not in time past. ⁷ Therefore I charge you, saying, You shall separate for your self three cities. ⁸ And if the Lord shall enlarge your borders, as he sware to your fathers, and the Lord shall give to you all the land which he said he would give to your fathers; ⁹ if you shall listen to do all these commands, which I charge you this day, to love the Lord your God, to walk in all his ways continually; you shall add for yourself yet three cities to these three. ¹⁰ So innocent blood shall not be spilt in the land, which the Lord your God gives you to inherit, and there shall not be in you one guilty of blood. ¹¹ But if there should be in you a man hating his neighbor, and he should lay wait for him, and rise up against him, and strike him, that he die, and he should flee to one of these cities, ¹² then shall the elders of his city send, and take him thence, and they shall deliver him into the hands of the avengers of blood, and he shall die. ¹³ Your eye shall not spare him; so shall you purge innocent blood from Israel, and it shall be well with you.