A dramatic and absolute declaration of inevitable destruction marks the close of a peaceful era. When God directs His message to the Land of Israel, He is not merely speaking to the physical soil, but rather to the settled regions and the people inhabiting them [מצודת דוד, רד"ק]. The looming disaster brings an inescapable finality, signaling total destruction [ביאור שטיינזלץ] and the complete loss of the prosperity and quiet the land once enjoyed [רד"ק].
This catastrophic conclusion is the tragic realization of an ancient warning. Long ago in the Torah, God cautioned that if the people allowed their morals to corrupt after living securely in the land for an extended time, their actions would eventually lead to their own ruin [רש"י].
The impending devastation is so profound that its impact reaches far beyond local borders. Because of the sins of the Israelites, ruin is unleashed upon the broader world. The disaster strikes the surrounding nations first, but its ultimate purpose is to return and deliver its final blow to Israel [מלבי"ם]. As the destruction sweeps inward, it will reach every distant edge and border of the territory [מצודת ציון]. The collapse will be so widespread and absolute that not a single city within the Land of Israel will escape the ruin [מצודת דוד, ביאור שטיינזלץ].