3-5. Behold, the hand of the Lord is upon thy cattle—A fifth application was made to Pharaoh in behalf of the Israelites by Moses, who was instructed to tell him that, if he persisted in opposing their departure, a pestilence would be sent among all the flocks and herds of the Egyptians, while those of the Israelites would be spared. As he showed no intention of keeping his promise, he was still a mark for the arrows of the Almighty's quiver, and the threatened plague of which he was forewarned was executed. But it is observable that in this instance it was not inflicted through the instrumentality or waving of Aaron's rod, but directly by the hand of the Lord, and the fixing of the precise time tended still further to determine the true character of the calamity (Jer 12:4).

     8. Take to you handfuls of ashes, &c.—The next plague assailed the persons of the Egyptians, and it appeared in the form of ulcerous eruptions upon the skin and flesh (Le 13:20; 2Ki 20:7; Job 2:7). That this epidemic did not arise from natural causes was evident from its taking effect from the particular action of Moses done in the sight of Pharaoh. The attitude he assumed was similar to that of Eastern magicians, who, "when they pronounce an imprecation on an individual, a village, or a country, take the ashes of cows' dung (that is, from a common fire) and throw them in the air, saying to the objects of their displeasure, such a sickness or such a curse shall come upon you" [ROBERTS].

     29. at midnight the Lord smote all the first-born in the land of Egypt—At the moment when the Israelites were observing the newly instituted feast in the singular manner described, the threatened calamity overtook the Egyptians. It is more easy to imagine than describe the confusion and terror of that people suddenly roused from sleep and enveloped in darkness—none could assist their neighbors when the groans of the dying and the wild shrieks of mourners were heard everywhere around. The hope of every family was destroyed at a stroke. This judgment, terrible though it was, evinced the equity of divine retribution. For eighty years the Egyptians had caused the male children of the Israelites to be cast into the river [Ex 1:16], and now all their own first-born fell under the stroke of the destroying angel. They were made, in the justice of God, to feel something of what they had made His people feel. Many a time have the hands of sinners made the snares in which they have themselves been entangled, and fallen into the pit which they have dug for the righteous [Pr 28:10]. "Verily there is a God that judgeth in the earth" [Ps 58:11].

     27. the botch of Egypt—a troublesome eruption, marked by red pimples, to which, at the rising of the Nile, the Egyptians are subject.