Midrash su Isaia 30:14

Another interpretation: Why was it likened to iron and clay? Just as iron is hard, so is this wicked kingdom hard. And why is it like clay? Because the Holy One is going to break it like clay, as stated (in Is. 30:14): HE SHALL BREAK IT AS A POTTER'S VESSEL IS BROKEN…. Now < Daniel > had seen the Messianic King, as stated (in Dan. 2:34): YOU LOOKED ON UNTIL A STONE WAS CUT OUT WITHOUT THE USE OF HANDS…. Resh Laqish said: This <stone> is the Messianic King. (Ibid., cont.:) THEN IT STRUCK THE STATUE ON ITS FEET, <i.e., struck> all the kingdoms, which were set in the statue. Now by virtue of what is the Messianic King likened to a stone (even)? By virtue of Jacob, < of whom >²⁷“Of whom” is the reading in Tanh., Exod. 7:7. it is stated (in Gen. 49:24): FROM THERE <COMES> THE SHEPHERD, THE ROCK (even) OF ISRAEL²⁸In the biblical context these words would naturally refer to the Holy One, but the midrash understands them as an allusion to Jacob, as does Rashi, ad loc. So also below, 9:12. (Dan. 2:45:) < BECAUSE YOU SAW> THAT A ROCK (even) WAS CUT FROM THE MOUNTAIN, so that it consumes the whole world, as stated (in Is. 11:4): AND HE SHALL SMITE THE EARTH WITH THE ROD OF HIS MOUTH. In that hour Israel shall dwell in tranquillity and security, as stated (in Ezek. 28:26:) AND THEY SHALL DWELL ON IT (their own soil) IN SECURITY.

Daniel beheld the four kingdoms and was dismayed, as it is written: As for me Daniel, my spirit was pained in me (Dan. 7:15). What did Daniel see when Nebuchadnezzar revealed his dream? He told him: In the great dream you witnessed, Its head was of fine gold—this alludes to you; Its breasts and its arms of silver, to the kingdom of Media. After thee shall rise another kingdom that will be inferior to thee; And its thighs of brass refers to the kingdom of Greece. And another third king of brass, which shall bear rule over all the earth. And its legs of iron, its feet part of iron and part of clay refers to the fourth kingdom, Edom; the fourth kingdom shall be as strong as iron (Dan. 2:33, 39–40). I will rule the entire world with the power of iron, as it is said: Beateth down all things (ibid.). Why is it compared to both iron and clay? Our sages said: Because in the future it will use a clay coin!¹¹Possibly an allusion to the continual debasing of Roman coinage during the Empire, or a reference to the gradual collapse of the Roman Empire at the time of the compiling of this Midrash. Another comment on why it is compared to iron and clay. In the future it will be like iron and clay, for just as iron is hard, that kingdom will be hard, and just as clay is easy to break, so it will be broken. And he shall break it as a potter’s vessel is broken, breaking it in pieces without sparing; so that there shall not be found among the pieces thereof a sherd to take fire from the hearth, or to take water out of the cistern (Isa. 30:14).

“It was contemptible in his eyes to lay hands on Mordekhai alone, for they had told him of Mordekhai’s people; Haman sought to destroy all the Jews that were in the whole kingdom of Aḥashverosh, the people of Mordekhai” (Esther 3:6).
“It was contemptible [vayyivez] in his eyes to lay hands on Mordekhai alone” – contemptible one son of contemptible one. It is written there: “Esau showed contempt [vayyivez] to the birthright” (Genesis 25:34), and here it is written: “It was contemptible in his eyes.”
“Haman sought to destroy all the Jews” – Rabbi Shimon ben Yosei ben Lakonya said: In this world, Israel was likened to rocks, as it is stated: “For from the top of rocks I will see them” (Numbers 23:9); “look to the rock from which you were quarried” (Isaiah 51:1). They were likened to stones, as it is stated: “From the shepherd of the stone of Israel” (Genesis 49:24); “the stone that the builders rejected” (Psalms 118:22). The nations of the world were likened to pottery; that is what is written: “He will break it as a potter’s jug is broken” (Isaiah 30:14). If a boulder falls on a clay pot, woe to the pot; if the pot falls on a boulder, woe to the pot; one way or the other, woe to the pot. So it is regarding anyone who confronts them [the Jews]; he will receive his just deserts from them. And so it says in Nebuchadnezzar’s dream: “That a stone was hewn from the mountain, not with hands, and it crushed the iron, the bronze, the clay”¹⁰The stone will destroy the image made of the different materials, each representing an empire that will be destroyed. (Daniel 2:45).
Rabbi Ḥiyya bar Yannai said: If the royal purple is sold in the marketplace, woe to the buyer and woe to the seller. Likewise, Israel is the royal purple in which the Holy One blessed be He glories; that is what is written: “My servant Israel, that I glory in you” (Isaiah 49:3); if they are sold, woe to the seller and woe to the buyer.
To what is the wicked Haman comparable? To a bird that made a nest on the seashore and the sea swept away its nest, and it said: ‘I will not move from here until the sea becomes dry land and the dry land becomes sea.’ What did it do? It would take water from the sea in its mouth and pour it on the land, and would take dirt from the land and cast it into the sea. Its fellow came and stood alongside it and said to it: ‘Luckless and unfortunate one! Ultimately, what can you accomplish?’ So said the Holy One blessed be He to the wicked Haman: ‘World class fool! I said I would destroy them, so to speak, and could not, as it is stated: “He said He would destroy them, were it not for Moses, His chosen one, who stood before Him in the breach to turn back His wrath from destruction” (Psalms 106:23), and you said “to destroy, to kill, and to eliminate” (Esther 3:13) [them]. By your life, your head will be severed instead of their heads, as they are destined for deliverance and you for hanging.’