Isidore of Seville : In what follows, "on their gods I shall pass judgment," the Hebrews affirm that on the night on which the people departed, all the temples in Egypt were destroyed, either by an earthquake or by a bolt of lightning. But we say, spiritually, that when we depart from Egypt, the idols of error take flight and the whole culture of perverse dogmas is crushed. — QUESTIONS ON THE OLD TESTAMENT, Exodus 14:17