Midrasch zu Jirmejahu 10:2

“How does the greatly crowded city sit alone? She has become like a widow. Great among the nations, a princess among the states: She has become a vassal” (Lamentations 1:1).
“How [eikha] does…sit [alone].” Three prophesied with the term eikha: Moses, Isaiah, and Jeremiah. Moses said: “How [eikha] can I bear alone…” (Deuteronomy 1:12). Isaiah said: “How [eikha] did [the faithful city] become a harlot?” (Isaiah 1:21). Jeremiah said: “How [eikha] does [the greatly crowded city] sit alone?” Rabbi Levi said: This is analogous to a noblewoman who had three friends. One saw her in her tranquility, one saw her in her debauchery, and one saw her in her disgrace. So, Moses saw them in their glory and their tranquility and said: “How [eikha] can I bear alone your troubles?” Isaiah saw them in their debauchery and said: “How [eikha] did [the faithful city] become a harlot?” Jeremiah saw them in their disgrace and said: “How [eikha] does [the greatly crowded city] sit [alone]?”
They asked ben Azai, saying to him: ‘Our teacher, expound for us one matter from the scroll of Lamentations.’ He said to them: ‘Israel was exiled only after they denied the Unique One of the world, circumcision that was given after twenty generations, the Ten Commandments, the five books of the Torah; the numerical value of eikha.’¹Alef—the Unique One of the world; yod—the Ten Commandments; kaf—twenty generations; heh—five books of Moses.
Rabbi Levi said: Israel was exiled only after they denied the thirty-six instances of karet in the Torah and the Ten Commandments, the numerical value of “how does…sit solitary [eikha yasheva badad]?”²Eikha: Alef -1, yod – 10, kaf – 20, heh – 5 = 36. Badad: Beit – 2, dalet – 4, dalet – 4 = 10.
Rabbi Berekhya [said] in the name of Rabbi Avdimai of Haifa: [This is analogous] to a king who had a son. When he would perform his father’s will, [the king] would clothe him in fine silk, and when he would not perform his will, he would clothe him in the garments of an olive-press worker [badad]. So too Israel, as long as they would perform the will of the Holy One blessed be He, it is written: “I clothed you in embroidery” (Ezekiel 16:10). Rabbi Sima said: Purple garments. Onkelos translated: Embroidered garments. But when they do not perform the will of the Holy One blessed be He, He clothes them in the garments of olive-press workers. That is what is written: “How does…sit solitary [badad]?”
Rav Naḥman said that Shmuel said in the name of Rabbi Yehoshua ben Levi: The Holy One blessed be He summoned the ministering angels and said to them: ‘A flesh and blood king, when a relative of his dies and he mourns, what does he typically do?’ They said to Him: ‘He hangs sackcloth on his entrance.’ He said to them: ‘I, too, will do so.’ That is what is written: “I clothe the heavens in blackness and I place sackcloth as their garment” (Isaiah 50:3). ‘A flesh and blood king, what [else] does he typically do?’ They said to Him: ‘He extinguishes the lamps.’ He said to them: ‘That is what I will do,’ as it is stated: “The sun and the moon darkened and the stars withdrew their shining” (Joel 4:15). ‘A flesh and blood king, what does he typically do?’ ‘He overturns the beds.’ ‘That is what I will do,’ as it is stated: “Until thrones were set in place and the Ancient One sat” (Daniel 7:9), [implying,] as it were, that they had been overturned.³Beds were a general term for anything one would sit on. The fact that the thrones, in this verse, were set in place, implies that previously they had been overturned as a sign of mourning. ‘A flesh and blood king, what does he typically do?’ ‘He walks barefoot.’ ‘That is what I will do,’ as it is stated: “His path is in tempest and in storm, and clouds are the dust of His feet” (Nahum 1:3). ‘A flesh and blood king, what does he typically do?’ ‘He rends his purple garments.’ ‘That is what I will do,’ as it is stated: “The Lord accomplished what He devised; He implemented [bitza] His statement [emrato]” (Lamentations 2:17). Rabbi Yaakov of Kefar Ḥanan explained it: What is bitza emrato? It is that He rent His purple garments.⁴The word rent, or tear, in Aramaic, biza, is similar to bitza. The word emrato is spelled the same as imrato, which in rabbinic parlance means the edge of one’s garment (Matnot Kehuna). ‘A flesh and blood king, what does he typically do?’ ‘He sits in silence.’ ‘That is what I will do,’ as it is stated: “Let him sit alone and be silent” (Lamentations 3:28). ‘A flesh and blood king, what does he typically do?’ ‘He sits and weeps.’ ‘That is what I will do,’ as it is stated: “The Lord, God of hosts, called on that day for weeping and for lamentation and for baldness” (Isaiah 22:12).
Another matter: Eikha, Jeremiah said to them: ‘What did you see in idol worship that you are so enthusiastic to follow it? If it had a mouth to engage in debate, we would have said this.⁵We would have proven the falseness of idolatry and the idols themselves would have had to concur. The word eikha is being interpreted as two words: Ei, ka, “if…this” (Etz Yosef). Instead, we will speak of it and we will speak of Him.’ We will speak of it, “So said the Lord: Do not learn the way of the nations, and from the signs of the heavens do not be frightened, though the nations are frightened by them” (Jeremiah 10:2). We will speak of Him: “Tell them this: The gods who did not make the heavens and the earth shall vanish from the earth and from under these heavens. [He makes the earth with His might]” (Jeremiah 10:11–12). “The Portion of Jacob is not like these, for He is the one who forms everything, and Israel is the tribe of His inheritance, the Lord of hosts is His name” (Jeremiah 10:16).
Rabbi Yehuda and Rabbi Neḥemya, Rabbi Yehuda says: The term eikha is nothing other than an expression of reproof. That is what is written: “How [eikha] can you say: We are wise, and the law of the Lord is with us...”? (Jeremiah 8:8). Rabbi Neḥemya says: The term eikha is nothing other than an expression of lamentation. That is what is written: “The Lord God called to the man, and said to him: Where are you [ayeka]?” (Genesis 3:9), woe are you [oy lekha]. When was the scroll of Lamentations composed? Rabbi Yehuda says: It was composed in the days of Yehoyakim.⁶This was before the destruction of Jerusalem and the Temple. This is consistent with Rabbi Yehuda’s view that the term eikha is a term of reproof. In his view, Lamentations, or Eikha, was composed as a warning before the destruction. Rabbi Neḥemya said to him: ‘Does one weep over the dead before he dies? Rather, when was it composed? After the destruction of the Temple. This is its solution: “How [eikha] does…sit solitary?”’⁷This phrase implies that Jerusalem was already desolate.

(Exodus 12:2) "This month shall be to you": Adam did not count by it (but by Tishrei, as the first month). You say this, but perhaps (the meaning is) "to you," but not to a gentile? (This cannot be, for) this is understood by (Ibid.) "It is the first for you." How, then, am I to understand "to you"? As to you, but not to Adam. We find, then, that Israel count by the moon, and the gentiles by the sun. Not only does Israel count by the moon, but once in thirty days (at the blessing of the New Moon) they lift their eyes to their Father in heaven. And an eclipse of the sun portends evil to the gentiles, who count by the sun; and an eclipse of the moon portends evil to Israel, who count by the moon. Rebbi says: An eclipse of the sun in the east portends evil to the dwellers in the east; in the west, to the dwellers in the west. R. Yonathan says: Both (kinds of eclipses) were relegated to the gentiles, as it is written (Jeremiah 10:2) "Do not emulate the ways of the nations, and do not be dismayed at the signs of the heavens. Let the nations be dismayed by them!"

Rabbi Nehorai said: It is the decree of the King that when Israel sins || and fails to intercalate the year as is becoming, the Holy One, blessed be He, acts in His mercy at the time when the flame of the sun reaches the moon by night at 40 degrees (or ascents), then the Holy One, blessed be He, makes the moon dim and hides one of the Synhedrion. When Israel does the will of the Holy One, blessed be He, in His great mercy He makes the sun dim and He sends forth His anger upon the nations of the world, as it is said, "Thus saith the Lord, Learn not the way of the nations, and be not dismayed at the signs of heaven, for the nations are dismayed at them" (Jer. 10:2). Just as the moon's light does not rule over the sun's light by day, nor does the sun's light rule over the moon's light by night, likewise the calculation of the moon does not rule by day nor does the calculation of the sun (obtain) by night, and the one does not trespass on the boundary of the other.