(ו) חֲמִשָּׁה דְבָרִים אֵרְעוּ אֶת אֲבוֹתֵינוּ בְּשִׁבְעָה עָשָׂר בְּתַמּוּז וַחֲמִשָּׁה בְּתִשְׁעָה בְאָב. בְּשִׁבְעָה עָשָׂר בְּתַמּוּז נִשְׁתַּבְּרוּ הַלּוּחוֹת, וּבָטַל הַתָּמִיד, וְהֻבְקְעָה הָעִיר, וְשָׂרַף אַפּוֹסְטֹמוֹס אֶת הַתּוֹרָה, וְהֶעֱמִיד צֶלֶם בַּהֵיכָל. בְּתִשְׁעָה בְאָב נִגְזַר עַל אֲבוֹתֵינוּ שֶׁלֹּא יִכָּנְסוּ לָאָרֶץ, וְחָרַב הַבַּיִת בָּרִאשׁוֹנָה וּבַשְּׁנִיָּה, וְנִלְכְּדָה בֵיתָר, וְנֶחְרְשָׁה הָעִיר. מִשֶּׁנִּכְנַס אָב, מְמַעֲטִין בְּשִׂמְחָה:
(6) The mishna discusses the five major communal fast days. Five calamitous matters occurred to our forefathers on the seventeenth of Tammuz, and five other disasters happened on the Ninth of Av. On the seventeenth of Tammuz the tablets were broken by Moses when he saw that the Jews had made the golden calf; the daily offering was nullified by the Roman authorities and was never sacrificed again; the city walls of Jerusalem were breached; the general Apostemos publicly burned a Torah scroll; and Manasseh placed an idol in the Sanctuary. On the Ninth of Av it was decreed upon our ancestors that they would all die in the wilderness and not enter Eretz Yisrael; and the Temple was destroyed the first time, in the days of Nebuchadnezzar, and the second time, by the Romans; and Beitar was captured; and the city of Jerusalem was plowed, as a sign that it would never be rebuilt. Not only does one fast on the Ninth of Av, but from when the month of Av begins, one decreases acts of rejoicing.
(ג) גָּֽלְתָ֨ה יְהוּדָ֤ה מֵעֹ֙נִי֙ וּמֵרֹ֣ב עֲבֹדָ֔ה הִ֚יא יָשְׁבָ֣ה בַגּוֹיִ֔ם לֹ֥א מָצְאָ֖ה מָנ֑וֹחַ כׇּל־רֹדְפֶ֥יהָ הִשִּׂיג֖וּהָ בֵּ֥ין הַמְּצָרִֽים׃ {ס}
(3) Judah has gone into exile
Because of misery and harsh oppression;
When she settled among the nations,
She found no rest;
All her pursuers overtook her
In the narrow places.
(ה) בֵּין הַמְּצָרִים. שֶׁיֵּשׁ גֹּבַהּ מִכַּאן וּמִכַּאן וְאֵין מָקוֹם לָנוּס:
(5) Between the barriers. It is elevated on either side and there is no place to flee.
הַמְּצָרִים. גְּבוּלִים שֶׁל שָׂדֶה וָכָרֶם. וּמִדְרַשׁ אַגָּדָה, בֵּין שִׁבְעָה עָשָׂר בְּתַמּוּז לְתִשְׁעָה בְאָב:
The barriers. The boundaries of fields and vineyards. The Midrash Aggadah [explains that it refers to the boundaries of time], i.e., between the seventeenth of Tammuz and the ninth of Av.
מִשֶּׁנִּכְנַס אָב מְמַעֲטִין בְּשִׂמְחָה וְכוּ׳. אָמַר רַב יְהוּדָה בְּרֵיהּ דְּרַב שְׁמוּאֵל בַּר שִׁילַת מִשְּׁמֵיהּ דְּרַב: כְּשֵׁם שֶׁמִּשֶּׁנִּכְנַס אָב מְמַעֲטִין בְּשִׂמְחָה — כָּךְ מִשֶּׁנִּכְנַס אֲדָר מַרְבִּין בְּשִׂמְחָה.
§ The mishna teaches that from when the month of Av begins, one decreases acts of rejoicing. Rav Yehuda, son of Rav Shmuel bar Sheilat, said in the name of Rav: Just as when Av begins one decreases rejoicing, so too when the month of Adar begins, one increases rejoicing.