A severe warning is directed at the Israelites, establishing a direct link between abandoning the path of the Torah and the resulting destruction and exile. God cautions that the punishment for the people will involve both their removal from the land and the abandonment of the Temple. The Israelites will be forcefully uprooted and torn away from their home [מצודת ציון, ביאור שטיינזלץ]. At the same time, the Temple will be completely destroyed, transforming from a symbol of holiness into a mark of national shame [ביאור שטיינזלץ].
This devastating outcome is not an arbitrary decision. It is the fulfillment of a condition established between God and the Israelites long ago in the Torah. The agreement was clear that if the people refuse to listen to His voice, God will leave their sanctuaries in a state of desolation [רש״י].
In the aftermath of its destruction, the Temple will serve as a lasting example [ביאור שטיינזלץ]. It will turn into a common expression, used by people whenever they need a metaphor to describe someone who has suffered a massive disaster or terrible misfortune [רש״י]. Furthermore, the tragedy will become a constant topic of conversation [רש״י, מצודת ציון]. The ruins of the Temple will remain an ongoing story of disaster [רש״י] and a subject of endless mockery among all the nations [ביאור שטיינזלץ].