The city of Jerusalem was destroyed this first time with its temple on the 9th of Av on the Hebrew calendar. The second time Jerusalem was destroyed along with the Temple in 70 CE also happened on the 9th of Av. Look up 9th of Av and read about all of the horrible things that have happened to the Jewish people on the 9th of Av. This day has become a day of mourning.
"Your eyes will see Jerusalem: A tent which will not be folded; its stakes will never be pulled up" (Isaiah 33:20).
