Midrash su Levitico 16:31

3) And whence is it derived that eating, drinking, bathing, anointment, shodding, and cohabitation are forbidden on Yom Kippur? From "shabbaton shvuth." I might then think that all of these are forbidden on the Sabbath of creation (i.e., an ordinary Sabbath). It is, therefore, written (Vayikra 16:31) "Sabbath shabbaton is it" (Yom Kippur). It is forbidden in all of them, but not the Sabbath of creation.

“It was due to the sins of her prophets, the iniquities of her priests, who shed the blood of the righteous in her midst” (Lamentations 4:13).
“It was due to the sins of her prophets.” Rabbi Yudan asked Rabbi Aḥa: ‘Where did they kill Zekharya, in the Israelite courtyard or the women’s courtyard?’³⁶The midrash interprets the verse as referring not to the sins of prophets and priests, but rather to the great sin of the murder of Zekharya, who was a prophet and a priest. He said to him: ‘Neither in the Israelite courtyard nor in the women’s courtyard, but rather in the priestly courtyard.’ They did not treat his blood like the blood of a gazelle, nor like the blood of a deer. There it is written: “And any man from the children of Israel…who shall hunt game of a beast or a bird…[he shall pour out its blood], and cover it with dirt” (Leviticus 17:13). However, here it is written: “For her blood was within her; on a bare rock she placed it. She did not pour it on the ground to cover it with dirt” (Ezekiel 24:7). Why to that extent? “To arouse fury to take vengeance, I placed her blood upon the bare rock…” (Ezekiel 24:8).³⁷God brought about that Zekharya’s blood would not be covered in order to motivate the Babylonians to take vengeance upon the Israelites in order to assuage Zekharya’s blood.
Israel committed seven transgressions on that day. They killed a priest, a prophet, and a judge, spilled innocent blood, desecrated the Name, brought impurity to the Temple courtyard, and it was Shabbat and Yom Kippur.³⁸Shabbat and Yom Kippur are considered one, as both are described as a day of sabbatical rest [Shabbat shabbaton] (see, e.g., Exodus 31:15 and Leviticus 16:31) (Etz Yosef). When Nevuzaradan ascended, he saw that the blood of Zekharya was boiling. He said to them: ‘What is this?’ They said to him: ‘It is the blood of bulls and sheep.’ He brought the blood of offerings but it did not resemble it. He brought all kinds of blood but it did not resemble it. He said to them: ‘If you tell me, fine, but if not, I will comb the flesh of these people with iron combs.’³⁹The meaning is: I will comb your flesh with iron combs. It is common in rabbinic literature for people to address others in third person, or to refer to themselves in third person. They did not tell him, but once he said that to them, they said to him: ‘What can we hide from you? We had a prophet-priest who would reprimand us in the name of Heaven, but we did not accept it. We rose against him and killed him.’ He said to them: ‘I will assuage him.’ He brought the Great Sanhedrin and slaughtered them onto it, but it did not rest. He slaughtered the lesser Sanhedrin onto it, but it did not rest. He brought young priests and slaughtered them onto it, but it did not rest. He slaughtered schoolchildren onto it, but it did not rest. He bent over it and said: ‘Zekharya, I have eliminated the best of your people, do you wish me to eradicate all of them?’ It immediately rested. At that moment he contemplated repenting and said: ‘If for one who eliminates the life of one person of Israel it is so, this man,⁴⁰Nevuzaradan was referring to himself. who eliminated many lives, all the more so.’ The Holy One blessed be He became filled with mercy and He intimated to the blood, and it was absorbed in its place. Regarding that moment, it says: “It was due to the sins of its prophets, the iniquities of her priests, who shed the blood of the righteous in its midst.”

Rabbi Zechariah said: They read in the Torah and found written therein, "And ye shall afflict your souls" (Lev. 16:29), and on the Day of Atonement they caused a Shophar to be sounded throughout all the camp and proclaimed a fast for all Israel, old and young. Were it not for the Day of Atonement the world could not stand, because the Day of Atonement is in this world and in the world to come, || as it is said, "It is a sabbath of sabbaths unto you" (Lev. 16:31). "A sabbath" refers to this world, "sabbaths" refers to the world to come. Moreover, if all the festivals pass away, the Day of Atonement will not pass away, for the Day of Atonement effects reconciliation for serious offences as well as for slight offences. Whence do we know that the Day of Atonement effects reconciliation? Because it is said, "For on this day shall atonement be made for you, to cleanse you; from all your sins shall ye be clean" (Lev. 16:30). "From your sins" is not written here, but "from all your sins shall ye be clean before the Lord" (ibid.).