God delivers a powerful historical and moral rebuke to the Israelites, reminding them of the miraculous destruction of the mighty Amorite nation. This serves as a severe warning that God punishes nations for moral corruption, a message directed at the Israelites who have abandoned the path of good and adopted the evil behaviors of the surrounding nations [רד״ק, אברבנאל, צאינה וראינה]. The Amorites are specifically highlighted because they were the fiercest and most threatening of the Canaanite nations [אבן עזרא, רד״ק]. God eradicated them primarily to prevent the Israelites from imitating their abominations, which included idolatry and incest [מלבי״ם, רד״ק]. The rebuke initially targets the tribes of Gad and Reuben, who inherited their territory from the formidable Amorite kings Sihon and Og, before expanding to address the entire nation of Israel [חומת אנך, צוארי שלל].
To convey the extraordinary power of this enemy, vivid imagery from the natural world is employed. The Amorites are compared to towering cedars, reflecting not only their great physical stature but also their elevated political dominance, royalty, and honor [אברבנאל, מלבי״ם, ביאור שטיינזלץ]. Furthermore, their absolute might is likened to the oak, considered the strongest of trees [מצודת ציון, רד״ק]. This description emphasizes that the Israelites did not defeat an invincible, fortified enemy through natural warfare or military prowess, but solely through direct Divine intervention [מלבי״ם, רד״ק].
The metaphor continues by describing the absolute annihilation of this towering enemy, akin to a tree stripped of its fruit above and torn from its roots below, leaving no trace behind [מצודת דוד, מלבי״ם]. The primary approach among commentators reveals a deeper spiritual dimension to this imagery, representing a division between the heavenly and earthly realms. The upper fruit symbolizes the nation's spiritual guardian in heaven and the divine protection it received, while the lower roots represent the physical nation on earth, its earthly leaders, and the natural advantages of its land. God first subdued their spiritual power in the heavens before destroying the physical nation on earth [רש״י, מלבי״ם, אברבנאל, אהבת יהונתן]. Alternatively, a Midrashic perspective offers a physical interpretation of this total destruction, suggesting that God sent hornets to blind the enemy from above and castrate them from below [רש״י].
The conquest of this land also reveals a fascinating historical dynamic. When the Israelites originally left Egypt, the Canaanites destroyed their own homes and uprooted their fields to leave nothing of value for the approaching conquerors. In response, God delayed the Israelites in the desert for forty years. Assuming the threat had passed, the Canaanites eventually rebuilt their cities and replanted their fields. Consequently, when God finally destroyed the Amorites, the Israelites inherited a fully developed and flourishing land [חומת אנך, צוארי שלל]. Ultimately, the fate of the Amorites carries a timeless message: just as this mighty nation was uprooted once its sins reached their limit, the impending prophecies of destruction for the Temple will inevitably materialize if the people do not repent, regardless of how delayed they may seem [אהבת יהונתן].