Numbers 35:20

16“‘But if he struck him with an instrument of iron, so that he died, he is a murderer. The murderer shall surely be put to death.

17If he struck him with a stone in the hand, by which a man may die, and he died, he is a murderer. The murderer shall surely be put to death.

18Or if he struck him with a weapon of wood in the hand, by which a man may die, and he died, he is a murderer. The murderer shall surely be put to death.

19The avenger of blood shall himself put the murderer to death. When he meets him, he shall put him to death.

20If he shoved him out of hatred, or hurled something at him while lying in wait, so that he died,

21or in hostility struck him with his hand, so that he died, he who struck him shall surely be put to death. He is a murderer. The avenger of blood shall put the murderer to death when he meets him.

22“‘But if he shoved him suddenly without hostility, or hurled on him anything without lying in wait,

23or 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 and not seeking his harm,

24then the congregation shall judge between the striker and the avenger of blood according to these ordinances.