Numbers 35:12, 21, 24, 27
Numbers 35:12 NKJV
They shall be cities of refuge for you from the avenger, that the manslayer may not die until he stands before the congregation in judgment.
Numbers 35:24 NKJV
then the congregation shall judge between the manslayer and the avenger of blood according to these judgments.
Numbers 35:27 NKJV
and the avenger of blood finds him outside the limits of his city of refuge, and the avenger of blood kills the manslayer, he shall not be guilty of blood