Yehudah ben Tema dice: Sii audace come un leopardo, [... e non vergognarti di chiedere al tuo rabbino ciò che non hai capito, come abbiamo appreso: "Il timido non impara"] e accendi come un'aquila [a insegui il tuo apprendimento e non stanco, come è scritto (Isaia 40:31): "Solleveranno l'ala come aquile; correranno e non stanchi"], e rapidi come un cervo [per inseguire Mitzvoth], e forte come un leone [per sottomettere la tua inclinazione malvagia contro la trasgressione], per fare la volontà di tuo Padre celeste. Non voleva dire: "La" faccia sfacciata "di Gehinnom" [Questa espressione è usata perché la sfacciataggine è vista in faccia, vale a dire. (Proverbi 21:19): "Il malvagio è sfacciato in faccia"], e il "volto vergognoso" di Gan Eden. "Possa essere la tua volontà, OL nostro Dio che tu costruisca la tua città in fretta ai nostri giorni e dacci (noi) la nostra porzione nella Torah. [Cioè, proprio come ci hai concesso questo tratto (di vergogna), i segni del seme di Abramo sono vergogna, misericordia e benignità, così, può sia la tua volontà, ecc.]
Bartenura
"Be brazen like the leopard": This leopard is born from a wild boar and a lioness. As when it is the season for lions to be in heat, the lioness inserts its head into the brush of the forest and moans and summons the male, but [sometimes] the boar hears its voice and copulates [with] it and a leopard comes out from [the combination of] the two of them. And because it a bastard, it is brazen-faced, even though it does not have so much courage. You too, be brazen and do not be ashamed to ask your teacher what you did not understand, like that which we have learned, "one that is ashamed will not learn."
Even though he said, "[the] brazen-faced [are bound] for Gehinnom (Purgatory), he commanded brazenness in the rebuke of rebels and similar to it. And it is as if he said, "Use a little of the vices in their [correct] place for the will of God, may He be blessed, and His truth." [And it is] like the statement of the prophet (II Samuel 22:27), "and with the perverse, You are wily." However [it is] on condition that your intention is the truth; and that is [the meaning of] his saying, "to do the Will of your Father Who is in Heaven." And from the good things that God, may He be blessed, did for this nation is that they are shamefaced. And so [too], they said (Yevamot 79a) that the signs of the seed of Avraham is that they are shamefaced, merciful and doers of kindnesses. And it stated (Exodus 20:17), "so that My awe be upon your faces, that you not sin." And when he told about the virtues of shame, he requested and said, "Lord, our God - [just] like You have graced us with this virtue, so [too] grace us that Your city be rebuilt, speedily and in our days."
THE BRAZEN [lit. “strong of face”] END IN GEHINNOM. For he brazenly violates the will of his Father in Heaven. Rav writes that brazen people are called “strong of face” based on the verse in Proverbs 21:29, “an evil man’s brazenness is on his face.” And the verse says, “the wicked will return to Sheol” (Psalms 9:18).