Deuteronomy 4:41-43 - The Narrative Concerning Cities Of Refuge
41 Then Moses set apart three cities beyond the Jordan toward the sunrise; 42 that the manslayer might flee there, who kills his neighbor unawares, and didn't hate him in time past; and that fleeing to one of these cities he might live: 43 [namely], Bezer in the wilderness, in the plain country, for the Reubenites; and Ramoth in Gilead, for the Gadites; and Golan in Bashan, for the Manassites.