A stark warning is delivered regarding the consequences of choosing resistance over submission. The act of refusing to leave the city is fundamentally a refusal to step forward and surrender [ביאור שטיינזלץ].
If this path of defiance is chosen, the prophet makes it completely clear that the grim outcome he is about to describe is not his own invention. He declares that he is delivering the precise message and prophetic vision that God directly revealed [מצודת דוד].