Midrash su Lamentazioni 5:16

“The crown of our head has fallen; woe to us, for we have sinned” (Lamentations 5:16).
“The crown of our head has fallen.” Rabbi Yirmeya of Shavshav took an olive branch crown and tied it on his head.²¹After the destruction of the Temple, the Sages had decreed that one was not permitted to wear a golden crown at a wedding (Sota 49a). Rabbi Yirmeya understood that it was still permitted to wear this other type of crown. Shmuel heard and said: ‘It would be better for him to have his head removed and not to do so.’ It was “like an error that emerges from before the ruler” (Ecclesiastes 10:5); so it was for him.²²Rabbi Yirmeya was decapitated. Therefore it is stated: “The crown of our head has fallen; woe to us, for we have sinned.”

Another time, going up to Jerusalem, they came to Mount Scopus and tore their garments (in mourning over the destruction). When they saw a fox emerging from the holy of holies, they began to cry — and R. Akiva, to laugh. They: Akiva, will you always wonder why we are crying while you are laughing! He: And why are you crying? They: Why should we not cry over the place whereof it is written (Bamidbar 1:51) "And the zar (a non-priest) who comes near shall be put to death," when now a fox is emerging from it! We are fulfilling (Eichah 5:16-18) "For this our heart fails; for these our eyes are darkened: For the mountain of Zion is desolate; foxes walk in it." He: That is precisely why I was laughing. For it is written (Isaiah 8:2) "And I took for Myself faithful witnesses, Uriah the Cohein and Zecharyahu ben Yeverechyah." Now why the juxtaposition of Uriah with Zechariah? What did Zechariah say (Zechariah 8:4) "There yet shall sit old men and old women in the streets of Jerusalem, each his staff in his hand from abundance of days." And what did Uriah say? (Michah 3:12) "Therefore, because of you Zion will be plowed as a field, and Jerusalem shall be heaps, and the Temple Mount as forest mounds." The Holy One Blessed be He is hereby saying: Here are My two witnesses. If the words of Uriah will be fulfilled, the words of Zechariah will be fulfilled. And if the words of Uriah will not be fulfilled, the words of Zechariah will not be fulfilled. I was happy at the fulfillment of the words of Uriah. In the end, the words of Zechariah will be fulfilled. At these words they said to him: "Akiva, you have consoled us."