이사야 14:2의 미드라쉬

“Like the tents of Kedar,” just as the tents of Kedar appear externally to be ugly, black, and in tatters, but internally they are gems and pearls, so too Torah scholars, even though they appear ugly and black in this world, internally there is Torah in them, Bible, Mishna, Midrash, halakhot, Talmud, Tosefta, and aggada. If so, just as tents of Kedar do not require laundering, perhaps the same is true of Israel; the verse states: “Like the curtains of Solomon”—just as these curtains of Solomon are soiled and laundered, and are again soiled and laundered, so, too, Israel, even though they are soiled with sins all the days of the year, Yom Kippur arrives and atones for them, as it is stated: “For on this day He will atone for you” (Leviticus 16:30), and it is written: “If your sins will be like scarlet, they will be whitened as snow; if they will be reddened like crimson, they will be like wool” (Isaiah 1:18).
If so, just as the tents of Kedar are moved from place to place, perhaps the same is true of Israel. The verse states: “Like the curtains of Solomon [Shelomo],” like the curtains¹⁹⁷The heavens. of the One [of Whom it may be stated] that the peace is His, the One Who spoke and the world came into being, that from the moment He spread them, they did not move from their place. Rabbi Eliezer ben Yaakov taught: “A tent that will not be displaced [yatzan]” (Isaiah 33:20); it will not emerge [yetze] and will not move [yanua].¹⁹⁸Yatzan is an acronym of yetze and yanua.
Just as the tents of Kedar are not subject to the yoke of any creature,¹⁹⁹The reference is to nomads who live in the wilderness. so too, Israel, in the future, will not be subject to the yoke of any creature. Rabbi Ḥiyya taught: “I led you upright” (Leviticus 26:13); with an upright stature, without fear of any creature.²⁰⁰Although the verse cited is stated regarding the exodus from Egypt, it is understood as also alluding to the future redemption. Rabbi Yudan said: Like Joseph; just as Joseph was sold to the tents of Kedar, as it is stated: “They sold Joseph to the Ishmaelites… [and they brought Joseph to Egypt]” (Genesis 37:28), and he then purchased his purchasers, as it is stated: “Joseph purchased all the land of Egypt” (Genesis 47:20), so too Israel: “They will be captors of their captors” (Isaiah 14:2).

(Exod. 19:1:) ON THE THIRD NEW MOON. What is written above on the matter? The parashah about Jethro, in which he taught Moses (in Exod. 18:21): YOU SHALL ALSO SEEK OUT <ABLE MEN> FROM AMONG ALL THE PEOPLE.³²PRK 12:16. And after that (in vs. 27): THEN MOSES SENT HIS < FATHER-IN-LAW > AWAY. And after that (in Exod. 19:1): ON THE THIRD NEW MOON. Solomon said (in Prov. 14:10): THE HEART KNOWS ITS OWN BITTERNESS…, and therefore (according to the rest of the verse) NO OUTSIDER SHALL INTERVENE IN ITS JOY. The Holy One said: My children were enslaved with clay and bricks while Jethro was dwelling quietly within his house. So shall he come to behold the joy of the Torah along with my children? Then after that (in Exod. 19:1): ON THE THIRD NEW MOON. Why so? Moses interpreted <the matter on the principle of > qal wahomer (i.e., a fortiori): If in the case of a single precept, when the Holy One was going to give the precept on Passover, Torah said (in Exod. 12:43): NO FOREIGNER SHALL EAT OF IT; in the case of six hundred and thirteen commandments which he wanted to give to Israel, should Jethro be there to behold them? Therefore (in Exod. 18:27): MOSES SENT HIS <FATHER-IN-LAW> AWAY; and after that (in Exod. 19:1): ON THE THIRD NEW MOON. Why ON THE THIRD NEW MOON, and not on the second new moon, or the seventh new moon, or on another new moon?³³PRK 12:17. Our masters have said: R. Osha'ya said: R. Hiyya the elder taught me: A female proselyte, a female captive, or an emancipated female slave may neither marry nor be betrothed for three new moons.³⁴Yev. 35a (bar); Ket. 37a (bar). So <it was with> Israel. They were called proselytes (gerim), as stated (in Lev. 19:34): FOR YOU WERE STRANGERS (gerim) IN THE LAND OF EGYPT. <They were called> captives, as stated (in Is. 14:2): THEY SHALL TAKE THEIR CAPTORS CAPTIVE. <They were called> emancipated slaves, as stated (in Lev. 26:13): I AM THE LORD YOUR GOD WHO BROUGHT YOU OUT OF THE LAND OF EGYPT TO BE THEIR SLAVES NO MORE…. The Holy One said: I will wait three new moons for them and after that I will give them the Torah.

"and its captivity": for what they did with the captives of My people, viz. (Isaiah 14:2) "and they will be captors of their captors."