When a powerful nation falls to a weaker one, it might appear to be a failure of their protector. However, the defeat of the Israelites by lesser nations does not indicate any weakness in God. Instead, it demonstrates His absolute control. The purpose of this reality is to prove to the enemies, or to explain to the Israelites, the logic behind their defeat. The victory of these foreign nations is completely unnatural. It occurs solely because God has handed His people over to them as a consequence of their sins.
Throughout the biblical narrative, the image of a solid rock serves as a metaphor for God, representing the supreme power or the heavenly guardian of a nation [רש״י, שפתי חכמים, ספורנו]. The primary approach among commentators is that even the enemies must recognize that neither they nor their gods possess any independent strength. History shows that whenever the Israelites followed God's will, foreign deities were never able to overpower Him. This was clearly proven during the plagues in Egypt and the collapse of the idol Dagon [דעת זקנים, בכור שור, ביאור יש״ר]. The logical conclusion is that the power and success of foreign gods simply cannot compare to the power of God [שד״ל, חזקוני]. Therefore, the very fact that these enemies are now winning is undeniable proof that God Himself delivered the Israelites into their hands. Their victory is not a result of their own inherent might [רש״י, רשב״ם, מזרחי].
Beyond the sheer difference in strength, there is a fundamental contrast in the nature of these higher powers. The nations and their gods operate with cruelty, a lack of mercy, and a desire to completely destroy everything in their path. In contrast, God preserves the inner strength of the Israelites even while punishing them, acting with underlying mercy and kindness [העמק דבר, אדרת אליהו]. Furthermore, while the gods of the nations are bound by the laws of nature and astrology, God rules over nature entirely and alters its systems at will [מלבי״ם].
The dynamic of the enemies acting as judges and rulers over the Israelites is understood in several ways. One approach views this as the completion of the logical proof: even though the power guiding the enemies is inherently weaker, these enemies still rule and pass judgment over the Israelites. This unnatural dominance can only occur if God explicitly decreed it [רש״י, רשב״ם, חזקוני, ביאור שטיינזלץ, שפתי כהן, רלב״ג]. Another perspective turns the concept of judgment inward, suggesting that the enemies themselves will act as the judges. Through rational observation, they will evaluate the situation and admit that God's power is far greater than their own, acknowledging that their victory was granted solely by Him [אור החיים, ביאור יש״ר, נתינה לגר].
Other interpretations view the enemies not as judges, but as calculating counselors who actively plot and scheme to destroy the Israelites [ספורנו, אדרת אליהו]. Alternatively, their role is seen through the lens of crime and sin. Because these enemies act with severe, unwarranted cruelty toward others, they are fundamentally unfit to serve as true judges over the Israelites. They are deeply mistaken if they believe God appointed them for such a cruel task [העמק דבר, מלבי״ם, רבנו בחיי].