The sudden collapse of a mighty empire sends shockwaves of terror throughout the entire region. As this great power falls, neighboring nations and their leaders are struck with existential dread, recognizing that a disaster of this magnitude threatens their own survival. God brings about a state of profound shock among the nations. This is not merely a reaction to physical destruction, but a deep, paralyzing amazement that grips the onlookers [רש״י, רד״ק, מצודות].
The surrounding kings are overcome by an intense anxiety that strikes with the sudden, violent force of a stormy wind [מצודות]. The sheer intensity of this fear and shock is completely overwhelming, leaving the leaders deeply shaken [רד״ק, מלבי״ם]. This widespread terror is triggered when God brandishes His sword before them. Commentators explain that this divine sword is actually the Babylonian army led by King Nebuchadnezzar. The military forces move with terrifying speed, sweeping swiftly through the territories of the bystander nations [רש״י, מצודת דוד, מלבי״ם]. The rapid advance of this army is compared to a bird flying quickly through the air [רש״י], capturing the swift, upward swing of a deadly weapon [רד״ק, ביאור שטיינזלץ]. It also paints a picture of the bright, flashing lightning of a swinging blade that dazzles and terrifies anyone in its path [רד״ק, מצודת ציון].
Confronted with this terrifying display, the nations are thrown into a state of panic. The primary approach among commentators is that they experience a continuous, escalating anxiety, trembling anew with every passing moment. However, another perspective suggests that they are entirely shattered and broken by the sheer dread that this disaster will soon cross into their own borders [רש״י]. Ultimately, the fall of the empire forces everyone into a desperate state of self-preservation. Every individual and nation retreats inward, concerned only with their own survival. They are paralyzed by the fear that the devastating sword will not stop at its original target, but will continue its path of destruction and strike them as well [מלבי״ם, מצודת דוד, רד״ק, ביאור שטיינזלץ].