Midrash su Geremia 50:29

“Have the king appoint officials in all the provinces of his kingdom and they will gather every virgin young woman of fair appearance to the Shushan citadel, to the harem, to the custody of Hegai the king's eunuch, guardian of the women, and their cosmetics will be provided.” (Esther 2:3).
“Have the king appoint officials in all the provinces of his kingdom” – What did he [the king] see? Rabbi Huna said: Because they would demean the daughters of Israel and call them ugly, and that no person would look at them; therefore, they [the women of the kingdom] came into the hands of this purveyor.
Rabbi Ḥanina bar Shilka and Rabbi Yehoshua of Sikhnin and Rabbi Levi in the name of Rabbi Yoḥanan said: When a Jew and a gentile are residing in one courtyard, and the Jew places his pot on the fire and the gentile touches it, it is not ritually impure. If the gentile places his pot on the fire and the Jew touches it, he [the gentile] would say it is impure. Even if several repugnant creatures and creeping animals fall into it, he would eat it, but if a Jew places his food in it, he [the gentile] would break it. So, it is written: “Muster archers against Babylon, all who draw the bow, […repay it in accordance with its actions]” (Jeremiah 50:29). Did it take silver that it will repay silver, gold that it will repay gold? “They ravished women in Zion” (Lamentations 5:11). What does it teach? Rather, so said the Holy One blessed be He: You are eager for licentiousness; by your lives, I will bring upon you a nation that seeks neither silver nor gold from you. That is what is written: “Behold, I will rouse Media against them, who do not appreciate silver and do not desire gold” (Isaiah 13:17). What do they seek from you? “And bows will cleave youths, and they will not have mercy on the fruit of the womb” (Isaiah 13:18).
“To the custody of Hegai, the king’s eunuch [seris], guardian of the women” (Esther 2:3) – he was crushed,¹⁴His testicles were crushed. and was appointed over the virgins. Similarly, “to the custody of Shaashgaz, official [seris] of the king, guardian of the concubines” (Esther 2:14) – he was withered and was appointed over the wives.

VIII) Let there be [for her] no escape (Jeremiah 50:29), it is written wwithin lacking, for Babylon is the seat of sovereignty and the house of royalty, and thus it says (Daniel 4:27) Is that not great Babylon, which I built to be a royal residence? And in it the kingdom of Israel sank and her kingdom was annulled, and Jeremiah told the remnant of Israel that the vengeance of Adonai would be avenged upon it in this world and in the future, so it is written Let there be no escape in this world, and continued on the margins Let there be no escape for her in the future.