A decisive call to arms echoes against the Babylonian empire, revealing the true driving force behind world history. What appears to be a standard military campaign is actually a carefully calculated divine plan to bring about the downfall of Babylon as exact retaliation for its attack on what is holy.
The call begins with the physical preparations for battle, focusing first on the weaponry. The primary approach among commentators is that the soldiers are commanded to polish their arrows, cleaning away rust and sharpening them for the upcoming fight. Another perspective suggests the instruction is to attach feathers to the ends of the arrows to stabilize their flight [רד ק בשם אביו, מלבי״ם]. Building on this idea, a poetic image emerges in which the arrows are commanded to sprout wings and fly toward their target on their own [מלבי״ם].
Following the preparation of the arrows, the focus shifts to outfitting the soldiers. Commentators differ on the exact nature of this next step. One approach explains that the soldiers are told to simply fill their quivers with the newly prepared arrows [רש״י]. Alternatively, the instruction is understood as a call to gather and assemble shields in preparation for the march into battle [מצודת דוד, מצודת ציון, רד״ק]. Bridging these two views, another interpretation suggests the soldiers used a unique type of shield that included a built-in compartment for storing arrows [מלבי״ם].
After the physical gear is readied, the focus moves to the political and spiritual awakening behind the war. God Himself stirs the hearts of the kings of Media and Persia, Darius and Cyrus, planting within them the drive to launch this massive campaign [מצודת דוד, מלבי״ם, שטיינזלץ]. This sudden urge to conquer is the direct result of God's deliberate plan to completely destroy Babylon [מצודת ציון, מצודת דוד].
The underlying motive for this absolute destruction is clear: it is an act of divine vengeance. Babylon's punishment is not a reaction to its cruelty toward other nations, but a precise retaliation for burning and destroying God's Temple [מצודת דוד]. God places a deep conviction within the Median kings that their true mission is to avenge His honor and His sanctuary, and it is this very drive that pushes them to tear Babylon down to its foundations [מלבי״ם].