The painful reality of exile and the ruin of a great city did not happen by chance; they were the exact fulfillment of ancient warnings. Looking back, the catastrophic events played out exactly as the prophets had cautioned. These warnings trace back specifically to the curses and rebukes recorded in the Book of Deuteronomy [מלבי״ם, אלשיך]. They explicitly foretold the exile of both the nation and its king. This specific threat became strikingly real during the reign of King Josiah, when a Torah scroll was discovered rolled open to that exact passage, and the prophetess Huldah confirmed that God would indeed bring this disaster upon them [מלבי״ם].
A significant portion of the blame falls on the nation's leadership. The judges and leaders, whose responsibility was to guide the people on the right path, instead misled them and caused them to stumble. By doing so, they brought a heavy punishment upon the nation for its crimes [יוסף אבן יחיא]. The resulting catastrophe in Jerusalem was an unprecedented nightmare. The city endured the absolute worst horrors of war, including widespread death by the sword, the total burning of the capital, the torture of women, and the dragging away of captives bound in chains [רש״י].
Yet, the intense focus on Jerusalem's physical ruin reveals a profound expression of God's mercy. Had the Israelites been punished to the full extent they deserved for their sins, they would have been completely wiped out, leaving no survivors. Instead, God poured out His anger on the wood and stones of Zion and the Temple. The destruction of the city was counted as if it had struck the bodies of the Israelites themselves. This substitute allowed the punishment to be completed and the people to be cleansed without facing total annihilation. Ultimately, the fall of Jerusalem remains unparalleled under the heavens. Because it is God's city and His holy mountain, its ruin cannot be compared to the destruction of any other place on earth [אלשיך].