Midras Keluaran 7:9: Midrash Tanchuma, Shemot Rabbah & Midrash Tanchuma Buber

כִּי֩ יְדַבֵּ֨ר אֲלֵכֶ֤ם פַּרְעֹה֙ לֵאמֹ֔ר תְּנ֥וּ לָכֶ֖ם מוֹפֵ֑ת וְאָמַרְתָּ֣ אֶֽל־אַהֲרֹ֗ן קַ֧ח אֶֽת־מַטְּךָ֛ וְהַשְׁלֵ֥ךְ לִפְנֵֽי־פַרְעֹ֖ה יְהִ֥י לְתַנִּֽין׃

“Apabila Firaun berkata kepada kamu: ‘Tunjukkanlah suatu mukjizat bagi kamu,’ maka engkau harus berkata kepada Harun: ‘Ambillah tongkatmu dan lemparkanlah ke hadapan Firaun, supaya tongkat itu menjadi ular besar.’”

Midrash Tanchuma

When Pharaoh shall speak unto you, saying: “Show a wonder for you” (Exod. 7:9). He will be making a reasonable request to you. You find in the case of Noah, that though He said to him, after He saved him from the flood, Neither shall there be anymore a flood (Gen. 9:11), Noah demanded a sign, and God assured him: I have set my bow in the cloud (ibid., v. 13). Similarly, when Hezekiah was sick, the Holy One, blessed be He, sent Isaiah to him and he said: Thus saith the Lord, the God of David, thy father: “I have heard thy prayer, I have seen thy tears; behold, I will heal thee; on the third day thou shalt go up unto the house of the Lord” (II Kings 20:5). But he replied: What shall be the sign? (ibid., v. 8), and He answered: This shall be the sign unto thee from the Lord, that the Lord will do the thing that He hath spoken: shall the shadow go forward ten degrees, or go back ten degrees? (ibid., v. 9). Likewise, Joshua, the high priest, was told: Hear now, O Joshua the high priest, … for they are men that are a sign (Zech. 3:8). Since the righteous demanded signs, how much more did the wicked Pharaoh (have the right to do so). Hence, when Pharaoh says unto you: Show a wonder for you (he will be making a reasonable request).
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Midrash Tanchuma

When Pharaoh shall speak unto you, saying (Exod. 7:9). May it please our masters to teach us whether a man who is bitten by a serpent while standing in prayer may stop praying. Our masters teach us: A man standing in prayer may not respond to the greeting of a king, nor may he stop praying when a serpent encircles his heel. Once a wild ass attacked and bit R. Hanina the son of Dosa while he was standing in prayer and his disciples fled in fear. Upon their return a hour later, they found the ass lying dead near its den. They cried out: “Woe to the man whom a wild ass bites, but woe to the wild ass that attacks R. Hanina the son of Dosa.” Why did the sages compare a serpent that winds itself about the heel of a man with the kingdom of Egypt? R. Yosé the son of Pazzi said: Because it is written: The sound thereof shall go like the serpent’s; for they march with an army, and come against her with axes, as hewers of wood (Jer. 46:22). Just as the serpent hisses and kills, so the kingdom of Egypt hisses and kills a man. He would imprison a man, accuse him in secret, and surreptitiously execute him.
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Shemot Rabbah

“When Pharaoh will speak to you, saying: Provide a wonder for you; then you shall say to Aaron: Take your staff, and cast it before Pharaoh, it will become a serpent” (Exodus 7:9).
“When Pharaoh will speak to you” – Rabbi Pinḥas HaKohen bar Ḥama began: “Declaring the end from the beginning, and from ancient times matters that have not been done; saying: My counsel will stand, and all My desire I will do” (Isaiah 46:10) – the Holy One blessed be He declares at the beginning what will be at the end, as He says to Moses: “This people will rise, and go astray after the foreign gods of the land” (Deuteronomy 31:16), which they were destined to do after the death of Joshua: “And they will forsake Me, and breach My covenant” (Deuteronomy 31:16); “they forsook the Lord and did not worship Him” (Judges 10:6). That is “declaring the end from the beginning.”
Rabbi Pinḥas HaKohen bar Ḥama said: Anyone who reads this verse thinks that perhaps there is a dispute on High, as He says: “My counsel will stand [and all My desire I will do].” What is “and all My desire I will do”? It is that He desires to vindicate His creations, as it is stated: “The Lord desires for the sake of His righteousness, to make the Torah great and glorious” (Isaiah 42:21), and does not seek to condemn any creature, as it is stated: “I have no desire in the death of the wicked, but that the wicked repent from his way and live” (Ezekiel 33:11). Therefore, it is stated: “And all My desire I will do.” Likewise you find that the Holy One blessed be He told Moses the end from the beginning; it is not written: If Pharaoh will speak to you, but rather, “when [Pharaoh] will speak”; he is destined to say this to you.
Rabbi Yehuda ben Rabbi Shalom said: He is speaking appropriately: “Provide a wonder for you.” Likewise, you find with Noah, after all the miracles that the Holy One blessed be He performed for him in the ark, and He took him out of it, He said to him: “And the waters shall no more become a flood to destroy all flesh” (Genesis 9:15). [Noah] began asking for a sign,1That there would never again be a flood. until the Holy One blessed be He said to him: “I have set My rainbow in the cloud” (Genesis 9:13); if the righteous Noah asked for a sign, all the more so, the wicked Pharaoh [would].
Likewise, you find with Hezekiah, when Isaiah came and said to him: “So says the Lord…I will heal you; on the third day you will go up to the house of the Lord” (II Kings 20:5), he began asking for a sign, as it is stated: “Hezekiah said…what is the sign that the Lord will heal me, and that I will go up to the house of the Lord on the third day?” (II Kings 20:8). If the righteous Hezekiah asked for a sign, all the more so, the wicked Pharaoh [would].
Ḥananya, Mishael, and Azarya, when they descended into the fiery furnace, they descended only with a sign. How so? “Not to us, Lord, not to us” (Psalms 115:1), said Ḥananya. “To Your name give glory” (Psalms 115:1), said Mishael. “For Your kindness and for Your truth” (Psalms 115:1), said Azarya. Gabriel was answering after them: “Why should the nations say: Where [now is their God?]” (Psalms 115:2). Once this became fluent in their mouths all night, they took that as a sign and descended.2They took as a sign the fact that their prayer was fluent in their mouths. See Berakhot 34b.
If you cannot learn it from here, learn it from another source, as it is written: “Hear now, Yehoshua the High Priest, you and your counterparts who sit before you; as they are men of a sign” (Zechariah 3:8). Who were they? Rabbi Yehuda ben Rabbi Shalom said: They were Ḥananya, Mishael, and Azarya, for whom this sign was performed.3The reference is to the sign that they received before descending into the furnace. If the righteous seek a sign, all the more so, the wicked [Pharaoh would].
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