Numbers 35
22 Ref But if he thrust him suddenly without enmity, or hurled on him anything without lying in wait,
23 or with any stone, by which a man may die, not seeing him, and cast it on him, so that he died, and he was not his enemy, neither sought his harm;
24 Ref then the congregation shall judge between the striker and the avenger of blood according to these ordinances;
25 Ref and the congregation shall deliver the manslayer out of the hand of the avenger of blood, and the congregation shall restore him to his city of refuge, where he was fled: and he shall dwell therein until the death of the high priest, who was anointed with the holy oil.