Numbers 35:14

⁸If 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; ⁹and if you keep all this commandment to do it, which I command you today, to love the LORD your God, and to walk ever in his ways, then you shall add three cities more for yourselves, in addition to these three. ¹⁰This is so that innocent blood will not be shed in the middle of your land which the LORD your God gives you for an inheritance, leaving blood guilt on you.

⁷They set apart Kedesh in Galilee in the hill country of Naphtali, Shechem in the hill country of Ephraim, and Kiriath Arba (also called Hebron) in the hill country of Judah. ⁸Beyond the Jordan at Jericho eastward, they assigned Bezer in the wilderness in the plain out of the tribe of Reuben, Ramoth in Gilead out of the tribe of Gad, and Golan in Bashan out of the tribe of Manasseh. ⁹These were the appointed cities for all the children of Israel, and for the alien who lives among them, that whoever kills any person unintentionally might flee there, and not die by the hand of the avenger of blood, until he stands trial before the congregation.

⁴¹Then Moses set apart three cities beyond the Jordan toward the sunrise, ⁴²that the man slayer might flee there, who kills his neighbor unintentionally and didn’t hate him in time past, and that fleeing to one of these cities he might live: ⁴³Bezer in the wilderness, in the plain country, for the Reubenites; and Ramoth in Gilead for the Gadites; and Golan in Bashan for the Manassites.