Numbers 35:15-24

15These six towns will be a place of refuge for Israelites and for foreigners residing among them, so that anyone who has killed another accidentally can flee there. 16“ ‘If anyone strikes someone a fatal blow with an iron object, that person is a murderer; the murderer is to be put to death. 17Or if anyone is holding a stone and strikes someone a fatal blow with it, that person is a murderer; the murderer is to be put to death. 18Or if anyone is holding a wooden object and strikes someone a fatal blow with it, that person is a murderer; the murderer is to be put to death. 19The avenger of blood shall put the murderer to death; when the avenger comes upon the murderer, the avenger shall put the murderer to death. 20If anyone with malice aforethought shoves another or throws something at them intentionally so that they die 21or if out of enmity one person hits another with their fist so that the other dies, that person is to be put to death; that person is a murderer. The avenger of blood shall put the murderer to death when they meet. 22“ ‘But if without enmity someone suddenly pushes another or throws something at them unintentionally 23or, without seeing them, drops on them a stone heavy enough to kill them, and they die, then since that other person was not an enemy and no harm was intended, 24the assembly must judge between the accused and the avenger of blood according to these regulations.