Midrash su Genesi 41:39

Observe how powerful Judah was: It is written concerning him: The wrath of a king is as messengers of death, but a wise man will pacify it (Prov. 16:14). The wrath of a king refers to Judah, and a wise man will pacify it alludes to Joseph, as is said: There are none so discreet and wise as thou (Gen. 41:39). When Joseph realized that Judah’s anger was mounting, he said: “Now Egypt will be destroyed.”

“One is my faultless dove, one to her mother, pure to the one who bore her. Girls see her and laud her; queens and concubines, and praise her” (Song of Songs 6:9).
“One is my faultless dove”—“one,” this is Abraham, as it is stated: “Abraham was one” (Ezekiel 33:24). “One to her mother,” this is Isaac, who was an only child to his mother. “Pure [bara] to the one who bore her,” this is Jacob our patriarch, of whom it was clear [barur] to the one who bore him that he was entirely righteous. “Girls see her and laud her,” these are the tribes, as it is stated: “The news was heard in Pharaoh's palace, saying, "Joseph's brothers have come" (Genesis 45:16). Alternatively, “girls see her and laud her [vayashruha],” this is Leah, as it is stated: “In my happiness, as women will be happy for me [ishruni]” (Genesis 30:13).
“Queens and concubines, and praise her,” this is Joseph, as it is stated: “Pharaoh said to his servants: Can we find someone like this?” (Genesis 41:38). If we walk from one end of the world to the other we will not find someone like this, as it is stated: “After God has disclosed all this to you, [there is no one as insightful and wise as you]” (Genesis 41:39).

R. Yehoshua of Sakhnin in the name of R. Levi, "They would interpret it, but their voices would not enter his ears. 'The seven good cows are seven daughters that you will beget, and the seven bad cows are seven daughters that you will bury.' Likewise they said, 'The seven good sheaves are seven kingdoms that you will conquer, and the seven bad sheaves are seven ministers that will rebel against you'"... Another interpretation: "And he sent and called" - to inform you that each and every nation that stands in the world is granted five wise men to serve it. Moreover, the Holy One, blessed be He, gives it three things: wisdom , understanding and strength. As so did the evil Sannacherib say (Isaiah 10:13), "By the might of my hand have I done this, etc." But when the Holy One, blessed be He, judges the world, He takes them away from it, as it is stated (Obadiah 1:8-9), "I will make the wise vanish from Edom, understanding from Esau’s mount.Your warriors shall lose heart, O Teman." And why so much? So that Joseph will come at the end and attain greatness. The Holy One, blessed be He, said, "If Joseph comes first and interprets the dream, this [will not earn] him praise. The magicians will be able to say to him, 'If you had asked us, we would have already interpreted it for you [the same way].'" Rather, [Joseph] waited for them until they tired him out and extracted his spirit. And afterwards Joseph came and brought it back [to him]. About this did Solomon say (Proverbs 29:11), "The fool extracts his entire spirit" - these are the wise men of Egypt; "but the wise man lowers it back" - this is Joseph, as it is stated (Genesis 41:39), "there is no one wise and understanding like you."