Genesis 34:27

27. The sons of Jacob came. Moses shows that, not content with simple revenge, they fly together to the spoil. As it respects the words, they are said to have come upon the slain, either because they made themselves a way over the slaughtered bodies; or because, in addition to the slaughter, they rushed to the plunder. In whichever way it is taken, Moses teaches that, not satisfied with their former wickedness, they made this addition to it. Be it, that they were blinded with anger in shedding blood; yet by what right do they sack the city? This certainly cannot be ascribed to anger. But these are the ordinary fruits of human intemperance, that he who gives himself the rein in perpetrating one wickedness, soon breaks out into another. Thus the sons of Jacob, from being murderers, become also robbers, and the guilt of avarice is added to that of cruelty. The more anxious then should be our endeavors to bridle our desires; lest they should mutually fan each other, so that at length, by their combined action, a dreadful conflagration should arise; but especially, we must beware of using force of arms, which brings with it many perverse and brutal assaults. Moses says that the sons of Jacob did this, because the Shechemites had defiled their sister; but the whole city was not guilty. Moses, however, only states in what way the authors of the slaughter are affected: for although they wish to appear just avengers of the injury, yet they pay no respect to what it was lawful for them to do, and make no attempt to control their depraved affections, and consequently set no bounds to their wickedness. Should any one prefer taking the expression in a higher sense, it may be referred to the judgment of God, by which the whole city was involved in guilt, because no one had opposed the lust of the prince: perhaps many had consented to it, as not being very much concerned about the unjust dishonor done to their guests; but the former sense is what I most approve.