Hath he smitten him, as he smote those that smote them? - Has God punished his people in the same manner and to the same extent as he has their enemies? It is implied by this question that he had not. He had indeed punished them for their sins, but he had I not destroyed them. Their enemies he had utterly destroyed.
According to the slaughter of those that are slain by him - Hebrew, ‘According to the slaying of his slain.’ That is, not as our translation would seem to imply, that their enemies had been slain “BY” them; but that they were ‘their slain,’ inasmuch as they had been slain on their account, or to promote their release and return to their own land. It was not true that their enemies had been slain “by” them; but it was true that they had been slain on their account, or in order to secure their return to their own country.