vii. 14-25.
It was perhaps when the Nile was rising, and Pharaoh was coming to the bank, in pomp of state, to make official observation of its progress, on which the welfare of the kingdom depended, and to do homage before its divinity, that the messenger of another Deity confronted him, with a formal declaration of war. It was a strange contrast. The wicked was in great prosperity, neither was he plagued like another man. Upon his head, if this were Menephtah, was the golden symbol of his own divinity. Around him was an obsequious court. And yet there was moving in his heart some unconfessed sense of awe, when confronted once more by the aged shepherd and his brother, who had claimed a commission from above, and had certainly met his challenge, and made a short end of the rival snakes of his own seers. Once he had asked "Who is Jehovah?" and had sent His ambassadors to their tasks again with insult. But now he needs to harden his heart, in order not to yield to their strange and persistent demands. He remembers how they had spoken to him already, "Thus saith the Lord, Israel is My son, My firstborn, and I have said unto thee, Let My son go that he may serve Me; and thou hast refused to let him go: behold, I will slay thy son, thy firstborn" (iv. 22, R.V.). Did this awful warning come back to him, when the worn, solemn and inflexible face of Moses again met him? Did he divine the connection between this ultimate penalty and what is now announced--the turning of the pride and refreshment of Egypt into blood? Or was it partly because each plague, however dire, seemed to fall short of the tremendous threat, that he hoped to find the power of Moses more limited than his warnings? "Because sentence against an evil work is not executed speedily, therefore the heart of the sons of men is fully set in them to do evil."
And might he, at the last, be hardened to pursue the people because, by their own showing, the keenest arrow in their quiver was now sped? Whatever his feelings were, it is certain that the brothers come and go, and inflict their plagues unrestrained; that no insult or violence is attempted, and we can see the truth of the words "I have made thee as a god unto Pharaoh."
It is in clear allusion to his vaunt, "I know not Jehovah," that Moses and Aaron now repeat the demand for release, and say, "Hitherto thou hast not hearkened: behold, in this thou shalt know that I am Jehovah." What follows, when attentively read, makes it plain that the blow falls upon "the waters that are in the river," and those that have been drawn from it into canals for artificial irrigation, into reservoirs like the lakes Moeris and Mareotis, and even into vessels for immediate use.
But we are expressly told that it was possible to obtain water by digging wells. Therefore there is no point whatever in the cavil that if Moses turned all the water into blood, none was left for the operations of the magicians. But no comparison whatever existed between their petty performances and the immense and direful work of vengeance which rolled down a putrid mass of corrupt waters through the land, spoiling the great stores of water by which later drought should be relieved, destroying the fish, that important part of the food of the nation, for which Israel afterwards lusted, and sowing the seeds of other plagues, by the pollution of that balmy air in which so many of our own suffering countrymen still find relief, but which was now infected and loathsome. Even Pharaoh must have felt that his gods might do better for him than this, and that it would be much more to the point just then to undo his plague than to increase it--to turn back the blood to water than contribute a few drops more. If this was their best effort, he was already helpless in the hand of his assailant, who, by the uplifting of his rod, and the bold avowal in advance of responsibility for so great a calamity, had formally defied him. But Pharaoh dared not accept the challenge: it was effort enough for him to "set his heart" against surrender to the portent, and he sullenly turned back into the palace from the spot where Moses met him.