Go to Pharaoh in the morning as you see him walking out to the water. Wait on the bank of the Nile to meet him, and take in your hand the staff that was changed into a snake.
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
Get thee unto Pharaoh in the morning,.... The next morning, a time in which the mind is most composed and sedate, and fit to attend to what may be suggested: lo, he goeth out unto the water; the river Nile, either to take his morning's walk, and to refresh himself at the waterside, as the Jerusalem Targum; or to observe divinations upon the water, as...
Get thee unto Pharaoh--Now began those appalling miracles of judgment by which the God of Israel, through His ambassadors, proved His sole and unchallengeable supremacy over all the gods of Egypt, and which were the natural phenomena of Egypt, at an unusual season, and in a miraculous degree of intensity.