Numbers 35:16-18

Numbers 35:16-18. If he smite him with an instrument of iron, &c.— It appears from these verses, that it made no difference with what kind of weapon the man was killed; if he was killed wittingly and knowingly, this was adjudged murder, and the guilty person was to die for it. For though, perhaps, he had no formed intention to kill the person; yet he ought to have moderated his passion, and could not be ignorant that such an instrument was capable of inflicting a deadly wound.