Numbers 35:11-14

LITV(i) 11 then you shall choose cities to be cities of refuge for you, so that the manslayer may flee there, he that kills a person through error. 12 And the cities shall be to you for refuge from the kinsman avenger, that the manslayer may not die until he stands before the congregation for judgment. 13 As to the cities which you shall give six shall be cities of refuge for you. 14 You shall give three of the cities beyond the Jordan, and you shall give three of the cities in the land of Canaan; they shall be cities of refuge.