God watches the downfall of neighboring nations and expects these harsh events to act as a clear warning to Jerusalem. The hope is that witnessing such destruction will awaken the people to change their ways, thereby saving their own city. This divine expectation [מצודת דוד, ביאור שטיינזלץ] truly [מצודת ציון] involves two distinct levels of spiritual awakening. The people were expected to develop both a profound reverence for God's greatness and a practical willingness to improve their behavior out of a basic fear of punishment and suffering [מלבי״ם].
Had the people absorbed this lesson, their dwellings would have remained secure. This security is understood in two ways. It refers either to the physical survival of Jerusalem and its grand homes [רש״י, מצודת ציון, רד״ק, ביאור שטיינזלץ], or to the preservation of their spiritual center, the Temple, which housed the Divine Presence [מצודת דוד, מלבי״ם]. Furthermore, a successful return to God carried a divine promise regarding what He had decreed for the city [מצודת ציון]. Commentators disagree on the nature of this decree. One perspective suggests a positive outcome, meaning God would not withhold any of the abundant blessings He had originally planned for them [רש״י, מצודת דוד, ביאור שטיינזלץ]. Conversely, another view argues that the decree was negative, meaning that genuine repentance would have prevented all the severe punishments God had already prepared for Jerusalem [רד״ק, מלבי״ם]. Offering a completely different approach, [אבן עזרא] suggests that the destruction of the surrounding nations was meant to become a permanent story on the lips of the people, serving as a constant, unending reminder to stay faithful.
Tragically, the reality proved to be the exact opposite of God's expectation. Rather than being humbled into repentance, the people reacted with a sudden burst of wickedness. They eagerly rose early in the morning, rushing to commit fresh acts of corruption [מצודת דוד, רד״ק, ביאור שטיינזלץ]. In fact, their rush toward evil began even before the divine warnings could take effect, plunging them into a state beyond repair [מלבי״ם]. Ultimately, they corrupted absolutely every aspect of their behavior [מצודת ציון], ensuring that not a single wicked deed was left undone [רד״ק].