19 And the Lord spake unto Moses, Say unto Aaron, Take thy rod, and stretch out thine hand upon the waters of Egypt, upon their streams, upon their rivers, and upon their ponds, and upon all their pools of water, that they may become blood; and that there may be blood throughout all the land of Egypt, both in vessels of wood, and in vessels of stone.

20 And Moses and Aaron did so, as the Lord commanded; and he lifted up the rod, and smote the waters that were in the river, in the sight of Pharaoh, and in the sight of his servants; and all the waters that were in the river were turned to blood.

21 And the fish that was in the river died; and the river stank, and the Egyptians could not drink of the water of the river; and there was blood throughout all the land of Egypt.

It turns out that the curse of blood was more far-reaching than just the water that was in the Nile. It would make sense that any river or stream that flowed from the river would receive the same curse, but we are told that even isolated pools, ponds, and water-carrying vessels became corrupted.

The water of Egypt had been tainted years ago by the casting of innocent children into its depths, and the people had all drawn from that tainting and brought it into their homes, and now all that seed of evil was turned to blood at once. This is, of course, a symbol of how corruption at the core of a society tends to spread into all the homes and the minds of the individuals that dwell there. A falsehood in one place creates logical fallacies in every place that draws from it.

Too often we draw all our sustenance from one source: society. We take our doctrines, ideologies, and perspectives from that singular well, and we drink in all the corruption that grows there. We, like the Egyptians in these verses, need to find another source to drink from. We need to find a well that is pure and clean.