Taanit 29A

אנת צבית ל[א]חרובי ביתא ⁠— ידך אשלימת ליה.

You want to destroy the Temple; I have given you your hand. It is as though one idol said to the other: You are seeking to destroy the Temple by causing Israel to pray to you; I, too, give you a hand to assist you.

בתשעה באב נגזר על אבותינו שלא יכנסו לארץ, מנלן ⁠— דכתיב: ״ויהי בחדש הראשון בשנה השנית באחד לחדש הוקם המשכן״. ואמר מר: שנה ראשונה עשה משה את המשכן, שניה הקים משה את המשכן, ושלח מרגלים. וכתיב: ״ויהי בשנה השנית בחדש השני בעשרים בחדש נעלה הענן מעל משכן העדת״.

§ The Mishnah taught: On the 9th of Av, it was decreed upon our ancestors that they would not enter Eretz Yisrael. The Talmud asks: From where do we derive this? As it is written: “And it came to pass in the 1st month in the 2nd year, on the 1st day of the month, that the Tabernacle was erected” (Exodus 40:17). And the Master said: In the 1st year after leaving Egypt, Moses built the Tabernacle. At the beginning of the 2nd year, Moses erected the Tabernacle and sent the spies. And it is written: “And it came to pass in the 2nd year in the 2nd month, on the 20th day of the month, that the cloud was taken up from the Tabernacle of the Testimony” (Numbers 10:11).

וכתיב: ״ויסעו מהר ה׳ דרך שלשת ימים״. אמר רבי חמא בר חנינא: אותו היום סרו מאחרי ה׳. וכתיב: ״והאספסף אשר בקרבו התאוו תאוה וישבו ויבכו גם בני ישראל וגו׳״, וכתיב: ״עד חדש ימים וגו׳״⁠ — דהוו להו עשרין ותרתין בסיון,

And it is further written: “And they set forward from the mount of YHWH 3 days’ journey” (Numbers 10:33). R' Ḥama bar Ḥanina said: That very day, they turned away from God by displaying their anxiety about leaving Mount Sinai. And it is written: “And the mixed multitude that was among them fell a lusting, and the children of Israel also wept on their part, and said: Would that we were given flesh to eat” (Numbers 11:4). And it is written that the Jews ate the meat “for an entire month” (Numbers 11:20). If one adds to the first 20 days an additional 3 days’ journey, these are 23 days. Consequently, the subsequent month of 29 days of eating meat ended on the 22nd of Sivan.