16. And the Lord said unto Moses. In this place again, as before, Aaron is commanded to act as the inferior of Moses in punishing the tyrant; and this as being more ignominious than as if Moses alone had been employed. The nature of this third plague is very remarkable. God troubles Egypt not only with frogs, but with lice; for although the Hebrews are not entirely agreed as to the כנם, kinim, yet they admit that they were little animals or insects, which produced shame together with annoyance even to the meanest of men. We see then how magnificently God trampled upon the pride of Egypt, by inflicting a punishment full of affront and disgrace; for although it would have been painful to sink under a powerful and warlike enemy, yet was it far more sad to be basely destroyed by lice. Nor can we doubt that God prepared such an army as this, principally that He might openly manifest how easily He can bring to nought in derision all earthly strength and power. And surely, unless the Egyptians had been something more than stupid and beside themselves, this calculation would have come into their minds; what would hereafter happen, if the Maker of heaven and earth should apply Himself to their destruction with all His might, when they perceived themselves to be wasted away in this almost ludicrous contest with Him? But let us learn from this history, that all creatures are ready at God’s lightest command, whenever He chooses to make use of them to chastise His enemies; and again, that no animal is so vile and contemptible as not to have the power of doing injury when God employs it; and, finally, that reprobates obtain this at last by their proud doings, viz., that they are, with the greatest infamy, made to yield to the worms themselves, or to lice.