출애굽기 7:24 미드라쉬: Midrash Tanchuma Buber & Shemot Rabbah

(Exod. 10:22:) AND THERE WAS THICK DARKNESS IN ALL THE LAND OF EGYPT FOR THREE DAYS. There were < actually > seven days of darkness over the Egyptians.¹⁰Tanh., Exod. 3:3; Exod. R. 14:3. For the first three days whoever was sitting and wanted to stand would stand, and whoever was standing and wanted to sit would sit. Then for the next three days whoever was sitting was unable to stand and whoever was {sitting} [standing] was unable to sit.¹¹Tanh., Exod. 3:3, and Exod. R. 14:3 explains how the two sets of three days are derived from Exod. 10:22–23. First THERE WAS A THICK DARKNESS IN ALL THE LAND OF EGYPT FOR THREE DAYS WHEN THEY COULD NOT SEE ONE ANOTHER. THEN FOR THREE DAYS NO ONE COULD GET UP FROM WHERE HE WAS. Here are six <days>. And which day was the seventh? The one of which it is stated (in Exod. 14:20): THUS THERE WAS THE CLOUD AND THE DARKNESS WHICH LIT UP THE NIGHT. The cloud was in Egypt; and while it gave light to Israel, it was darkened for Egypt, as stated (in Exod. 10:23): BUT ALL THE CHILDREN OF ISRAEL HAD LIGHT IN THEIR DWELLINGS. Now, Israel entered the houses of the Egyptians, and whatever the Egyptians had, Israel searched out and looked at <them>. So, when the Holy One said to Israel (in Exod. 3:22): BUT EACH WOMAN SHALL BORROW < OBJECTS OF SILVER, OBJECTS OF GOLD, AND CLOTHING > FROM HER NEIGHBOR AND FROM THE WOMAN WHO SOJOURNS IN HER HOUSE…, Israel entered in among the Egyptians. Then, when each and every one would say to his companion and neighbor: Lend me that object which you have, and when he would say: I do not have it, he would say: I know that you have it, and here it is in your chest. See, it is in such and such a place. I saw it in your hand. So he lent him that object. And how did Israel know this? It is simply that in those days of darkness they had entered their houses and seen their silver, their gold, and whatever objects they had. R. Abbin the Levite said: Also when the plague of blood came over the Egyptians,¹²Cf. above 2:14. the Nile was turned into blood, as stated (in Exod. 7:24): AND ALL THE EGYPTIANS DUG AROUND THE NILE FOR WATER TO DRINK, < BECAUSE THEY COULD NOT DRINK THE WATER OF THE NILE>. What did they do? They saw Israel filling its casks from the Nile. So they went after them and sought water to drink from them, but it became blood within their mouths. R. Abbin said: Whatever they bought from Israel for a price they drank as water. Since it is impossible for anyone to exist without water, they bought water from Israel and thereby enriched Israel. [So also here, when the plague of darkness came upon them, they were acquainted with the Egyptians' houses and thereby <the Egyptians > made Israel rich.]

“The magicians of Egypt did so with their spells; and Pharaoh's heart hardened, and he did not heed them, as the Lord had spoken” (Exodus 7:22).
“The magicians of Egypt did so” – this teaches that they believed it was an act of sorcery. “With their spells [belateihem]” – Rabbi Aivo bar Nagrei said that Rabbi Ḥiyya bar Abba said: Belateihem is an act of demons; belahateihem (Exodus 7:11) is an act of sorcery. Likewise it says: “And the flame [lahat] of the ever-turning sword, to guard the way to the tree of life” (Genesis 3:24), as all acts of sorcery are performed by angels of destruction.
“Pharaoh turned and came to his house, and he did not take this to heart either” (Exodus 7:23).
“Pharaoh turned” – he was not concerned, and did not take heed of God’s plague.
“All the Egyptians dug around the Nile for water to drink, as they could not drink from the water of the Nile” (Exodus 7:24).
“All the Egyptians dug around the Nile” – Rabbi Yehuda says: Only [the water] in the Nile was afflicted. Rabbi Neḥemya says: [The water] above and below [the ground] was afflicted; the water of all of Egypt was afflicted with blood. Rabbi Yehuda said to him: ‘How do I interpret “All the Egyptians dug around the Nile.”’ He said to him: ‘Because the Egyptians were saying that all the water that Moses and Aaron saw were turned into blood, and they would dig to obtain water that their eyes had not seen.’¹⁶However, they did not actually find water, as even the water underground had turned to blood.
Rabbi Berekhya said: What is that which is written: “All the water that was in the Nile turned into [vayehafekhu] [blood]” (Exodus 7:20)? This is analogous to a servant who was being beaten by his master on his stomach, and he would turn himself around and receive the beatings on his back. So, too, the Nile would reverse [mehapekh] itself so that the plague would not affect it, but it was to no avail, as all of its water turned into blood.
Rabbi Yosei bar Avin said: A generalization, a detail, and a generalization, you may infer only matters similar to the detail. “Over the water of Egypt” (Exodus 7:19) – this is a generalization; “over their rivers, over their streams, and over their ponds” (Exodus 7:19) – this is a detail; “and over all their pools of water” (Exodus 7:19) – this is another generalization. What do you include [in the inference]? Everything that is similar to them.¹⁷That is, the water in the vessels did not turn to blood. What is “and in the wood and in the stone” (Exodus 7:19)? Our Rabbis, of blessed memory, say: Even their idols were afflicted with blood, as it is stated: “They say to wood: You are my father” (Jeremiah 2:27).
Another interpretation: “And in the wood and in the stone” (Exodus 7:19) – the water that they would drink with a Jew in one vessel, in a wooden vessel or in a stone vessel, would be transformed into blood in his mouth. Some say that even their pedestals and their lavatories were afflicted with blood. When one of them would go and sit on a bed, on a stone, or on a boulder, they would ruin their garments with blood. Likewise, it says: “The blood was throughout the land of Egypt” (Exodus 7:21.