Numbers 35:16-22

16And if he have smitten him with an instrument of iron, so that he die, he is a murderer: the murderer shall certainly be put to death.

17And if he have smitten him with a stone from the hand, wherewith one may die, and he die, he is a murderer: the murderer shall certainly be put to death.

18Or if he have smitten him with an instrument of wood, in the hand, wherewith one may die, and he die, he is a murderer: the murderer shall certainly be put to death;

19the avenger of blood, he shall put the murderer to death; when he meeteth him, he shall put him to death.

20And if he thrust at him out of hatred, or hurl at him intentionally, so that he die,

21or from enmity smite him with his hand, so that he die, he that smote him shall certainly be put to death; he is a murderer: the avenger of blood shall put the murderer to death, when he meeteth him. —

22But if he have thrust at him suddenly without enmity, or have cast upon him anything unintentionally,