Moses and Aaron did just as the LORD had commanded; in the presence of Pharaoh and his officials, Aaron raised the staff and struck the water of the Nile, and all the water was turned to blood.
20. And Moses and Aaron did so. He repeats that what God threatened as to the death of the fish, and the stinking of the Nile, actually took place; that he may aggravate the sin of the king, who was unaffected by the manifold power of God. Still he immediately adds that his counsellors witnessed it also. Hence we may conjecture, that the same infatuation had pervaded the whole court.
Here is the first of the ten plagues, the turning of the water into blood, which was, 1. A dreadful plague, and very grievous. The very sight of such vast rolling streams of blood, pure blood no doubt, florid and high-colored, could not but strike a horror upon people: much more afflictive were the consequences of it.
Commenting on Exodus 7:14-25
And Moses and Aaron did so, as the Lord commanded,.... Moses delivered the rod to Aaron, who took it and went to the water side: and he lift up the rod, and smote the waters that were in the river; or "in that river" (i), the river Nile, on the brink of which Pharaoh then stood: in the sight of Pharaoh, and in the sight...