Or in enmity strikes him with his hand, that he dies: he that struck him shall surely be put to death; for he is a murderer: the avenger of blood shall slay the murderer, when he meets him.
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George Leo Haydock
AD 1849
Kill him. It seems when the case was evident, he was not only permitted, but commanded to punish the criminal. (Bonfrere) (Deuteronomy xix. 12.) (Menochius)