Fill thy houses. Constructed with various openings for light and ventilation, ancient houses afforded insects ready means of entrance. In a plague, swarms of locusts would fly into the houses and creep over the walls by the tens of thousands. Observers who have experienced such a plague claim that it is even difficult to keep the locusts out of one’s mouth when eating.
Neither thy fathers. Like other Near Eastern countries, Egypt occasionally suffers from devastating plagues of locusts. This visitation, however, was to exceed any such plagues in the past.
He turned himself. Moses did not wait to learn the effect of his announcement upon the king, knowing that Pharaoh would not fear the Lord.