Numbers 35:12; Numbers 35:24; Numbers 35:25

12 The cities shall be for you a refuge from the avenger, that the manslayer may not die until he stands before the congregation for judgment.

24 then the congregation shall judge between the manslayer and the avenger of blood, in accordance with these rules.

25 And the congregation shall rescue the manslayer from the hand of the avenger of blood, and the congregation shall restore him to his city of refuge to which he had fled, and he shall live in it until the death of the high priest who was anointed with the holy oil.