On the Shabbat prior to Tisha B'Av, the Jewish national day of mourning, we will hear the famous Haftarah (reading from the Prophets) of Chazon, the "Vision of Isaiah." And on Tishah B'Av itself, we will recall the destruction of our Holy Temple nearly 2,000 years ago by fasting and mourning and the other observances of the day.
But why remember? For over 19 centuries, we have been remembering and observing this event and it has become the saddest day in our calendar. Why? Why not let bygones be bygones? It's history. What was was. Why keep revisiting old and painful visions?
They say that Napoleon was once passing through the Jewish ghetto in Paris and heard sounds of crying and wailing emanating from a synagogue. He stopped to ask what the lament was about. He was told that the Jews were remembering the destruction of their Temple. "When did it happen?" asked the Emperor. "Some 1700 years ago," was the answer he received. Whereupon Napoleon stated with conviction that a people who never forgot its past would be destined to forever have a future.
Jews never had history. We have memory. History can become a book, a museum, and forgotten antiquities. Memory is alive. And memory guarantees our future.
Even amidst the ruins, we refused to forget. The first temple was destroyed by the Babylonians. As they led the Jews into captivity, the Jews sat down and wept. "By the rivers of Babylon we sat and wept remembering Zion." What did we cry for? Our lost wealth, homes and businesses? No. We cried for Zion and Jerusalem. "If I forget thee 'O Jerusalem, let my right hand lose its cunning. If I fail to elevate Jerusalem above my foremost joy, then let my tongue cleave to its palate." We were not weeping for ourselves or our lost liberties but for the heavenly city and the Holy Temple. Amidst the bondage, we aspired to rebuild; amidst the ruins we dreamt of returning.
And because we refused to forget Jerusalem, we did return. Because we refused to accept defeat or accept our exile as a historical fait accompli, we have rebuilt proud Jewish communities the world over, while our victors have been vanquished by time. Today there are no more Babylonians and the people who now live in Rome are not the Romans who destroyed the Second Temple. Those nations became history while we, inspired by memory, emerged revitalized and regenerated and forever it will be true that Am Yisrael Chai — the people of Israel lives!
Only if we refuse to forget, only if we observe Tisha B'av, can we hope to rebuild one day. Indeed, the Talmud assures us, "Whosoever mourns for Jerusalem, will merit to witness her rejoicing." If we are to make it back to Zion, if our people are to harbor the hope of being restored and revived, then we dare not forget. And, please G‑d, He will restore those glorious days and rebuild His own everlasting house. May it be speedily in our day.
-adapted from www.chabad.org