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.

The Lord also said to Moses: Say to Aaron, Take thy rod, and stretch forth thy hand upon the waters of Egypt, and upon their rivers, and streams and pools, and all the ponds of waters, that they may be turned into blood: and let blood be in all the land of Egypt, both in vessels of wood and of stone.

And Jehovah said to Moses, Say unto Aaron, Take thy staff, and stretch out thy hand upon the waters of the Egyptians upon their streams, upon their rivers, and upon their ponds, and upon all their reservoirs of water, that they may become blood; and there shall be blood throughout the land of Egypt, both in vessels of wood and in vessels of stone.

And the LORD spoke to Moses, Say to Aaron, Take thy rod, and stretch out thy 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.

And Jehovah saith unto Moses, 'Say unto Aaron, Take thy rod, and stretch out thy hand against the waters of Egypt, against their streams, against their rivers, and against their ponds, and against all their collections of waters; and they are blood, and there hath been blood in all the land of Egypt, both in vessels of wood, and in those of stone.'

And the Lord said, Say to Aaron, Let the rod in your hand be stretched out over the waters of Egypt, and over the rivers and the streams and the pools, and over every stretch of water, so that they may be turned to blood; and there will be blood through all the land of Egypt, in vessels of wood and in vessels of stone.

The Lord also said to Moses: "Say to Aaron: 'Take your staff; and extend your hand over the waters of Egypt, and over their rivers and streams and marshes and all the pools of waters, so that they may be turned into blood. And let there be blood throughout all the land of Egypt, as much in vessels of wood as in those of stone.' "

Et dixit Jehova ad Mosen, Dic ad Aharon, Tolle virgam tuam, et extende manum tuam super aquas Aegypti, super flumina eorum, super rivos et stagna eorum, et super omnem collectionem aquarum ipsorum: et fient sanguis, eritque sanguis per totam terram Aegypti in vasis ligneis et lapideis.

And the Lord spake unto Moses. This is the more extended narrative of which I spoke; for Moses mentions nothing different from what went before, but explains more distinctly his mode of action in the performance of the miracle, namely, that what God had commanded was completed by the instrumentality of Aaron. There was a reason for commencing with this miracle, that the Egyptians might know that there was no safeguard for them in the resources upon which they prided themselves the most. We know what great wealth, defense, and conveniences arose to them from the Nile; thence came their abundant fisheries, thence the fertility of their whole country, which it irrigated in its inundation, a thing that, in other lands is injurious; its navigation was most advantageous for their merchants, it was also a strong fortification to a good part of the kingdom. Therefore, in order to cast down the Egyptians from their principal dependence, He turns its waters into blood. Besides, because water is one of the two elements of which man's life consists, in depriving the Egyptians of one part of their life, He used the best and shortest method of humiliating their haughtiness, had they not been altogether intractable. He might, indeed, by a single breath, have dried up all the sources of water, and overwhelmed the whole nation by drought; but this would have been commonly believed to have happened by chance, or naturally, and therefore would have been a less apparent prodigy, whilst it would have shut up the way for others. It would, then, have been sufficient, by the terror of death it awakened, to turn them to the fear of God, unless their madness had been desperate. Moses enumerates, besides the river, the streams, and ponds, and pools of water; because, in different parts of the country, as well artificially as naturally, the Nile was so diffused, that scarcely any other country is provided in all directions with such an abundance of water; as though God should say, "It shall avail you nothing to possess such an immense supply of water; because you shall thirst as much as if the Nile were dry." He adds, "both in vessels of wood and in vessels of stone;" meaning, that in whatever kind of vessel they came to draw, they would find nothing but blood.

The "streams" mean the natural branches of the Nile in Lower Egypt. The word "rivers" should rather be "canals"; they were of great extent, running parallel to the Nile, and communicating with it by sluices, which were opened at the rise, and closed at the subsidence of the inundation. The word rendered "ponds" refers either to natural fountains, or more probably to cisterns or tanks found in every town and village. The "pools", literally "gathering of waters," were the reservoirs, always large and some of enormous extent, containing sufficient water to irrigate the country in the dry season.
In vessels of wood - The Nile water is kept in vessels and is purified for use by filtering, and by certain ingredients such as the paste of almonds.

That there may be blood - both in vessels of wood, and in vessels of stone - Not only the Nile itself was to be thus changed into blood in all its branches, and the canals issuing from it, but all the water of lakes, ponds, and reservoirs, was to undergo a similar change. And this was to extend even to the water already brought into their houses for culinary and other domestic purposes. As the water of the Nile is known to be very thick and muddy, and the Egyptians are obliged to filter it through pots of a kind of white earth, and sometimes through a paste made of almonds, Mr. Harmer supposes that the vessels of wood and stone mentioned above may refer to the process of filtration, which no doubt has been practiced among them from the remotest period. The meaning given above I think to be more natural.

And the Lord spake unto Moses,.... Pharaoh still being obstinate, and refusing to let the people go:
say unto Aaron, take thy rod, and stretch out thine hand upon the waters of Egypt; upon all of them in general, what were in the river Nile, or derived from it, as follows:
upon their streams; the seven streams of the river Nile; see Gill on Isaiah 11:15.
upon their rivers; the canals that were cut out of the river Nile, for the watering of their fields and gardens, for they had no other river:
and upon their ponds, and upon all their pools of waters; which were dug near the river, or to which pipes were laid to convey the water thither:
that they may become blood; and so not fit to drink:
and that there may be blood throughout all the land of Egypt,
both in vessels of wood, and in vessels of stone; in which water were kept in private houses, fetched from the river for the use of families; all which were to be turned into blood everywhere, in all parts of the land, and in all places mentioned, immediately upon Aaron's taking his rod, and smiting the waters with it in that part of the river that was before him.