The devastating disasters that strike a nation rarely arrive without reason. Rather than being arbitrary events, these tragedies are the bitter, direct results of a people's own choices. A clear distinction exists between a society's general way of life and its specific actions. The overall lifestyle reflects broad customs and behaviors, while individual deeds grow directly from a person's inner moral character [מלבי״ם, מצודת ציון]. Ultimately, it is this corrupt way of living and these specific bad deeds that invited the enemy in to destroy the land [רד״ק]. These daily choices gave birth to the overwhelming troubles they now face, even if the people themselves never saw the consequences coming [מצודת דוד, ביאור שטיינזלץ].
The actions themselves are the true cause of the suffering [רש״י, רד״ק, מנחת שי]. The disaster is not a random occurrence but a direct response to their deep-seated wickedness and rebellion [רד״ק, מצודת דוד]. Because of this rebellion, the reality they face is incredibly harsh and filled with a bitterness that cannot be repaired [מצודת ציון, רד״ק, ביאור שטיינזלץ]. The pain of this destruction is not something distant or superficial. Instead, the tragedy has drawn dangerously close, striking the people at their deepest and most sensitive inner core [מצודת דוד].