The impending military threat against the Land of Israel is not a random collision of empires, but a deliberate divine plan. God orchestrates the movement of foreign powers, drawing them in to impose their rule over the nation. This divine summons is not a physical voice echoing across borders, but an internal awakening. God places the thought and the drive directly into the hearts of these nations, urging them to march forward and attack Jerusalem [רד״ק, מצודת דוד, צאינה וראינה]. The call reaches out to the northern kingdoms, drawing in both the vast masses of the population and the kings and rulers of the Babylonian empire, led by Nebuchadnezzar [רד״ק, ביאור שטיינזלץ].
As the enemies arrive, they establish their seats of power. The primary approach among commentators is that this action symbolizes the tightening of a strict siege and the enemy's absolute control over the city [מצודת דוד, ביאור שטיינזלץ]. Historically, this became a reality when the officers of the Babylonian king physically set up their seats in Jerusalem after capturing it [רד״ק]. Alternatively, this scene can be viewed as the image of a courtroom. God summons the nations of the world to serve as judges in a dispute between Him and His people. They set up their thrones like courts spread across the land, ready to hear the claims and pass judgment [מלבי״ם].
From another perspective, the presence of many different kings setting up their thrones actually carries a hidden measure of comfort and mercy. If a single king held absolute power over the land, he would have the ability to wipe out the nation entirely. The arrival of numerous kings and nobles prevents any unanimous agreement on total destruction, thereby ensuring the survival of the people. Furthermore, the arrival of these enemies sets the stage for a future shift; when these foreign powers eventually sin, the judgment against Israel will be softened in comparison [אהבת יהונתן].
The invading forces spread out in a very specific pattern: starting at the gates of Jerusalem, moving to the surrounding walls, and finally extending to all the cities of Judah. In a typical military campaign, a conquering army first captures the open country towns, advances to the city walls, and only at the end breaks through the gates. However, because these conquerors act as leaders and judges, the progression is reversed. It illustrates the natural flow of governing authority, which radiates outward from the central seat of power at the capital's gates, expands to the city walls, and finally projects its influence over all the surrounding towns [מלבי״ם].