ויקרא, פרק כ״ו, פסוק ח׳

A profound promise of a miraculous, decisive military victory ensures that a tiny fraction of fighters will overcome colossal armies. The focus lies not just on the triumph itself, but on the staggering disproportion between the forces and the supernatural manner of the enemy's destruction. The assurance extends beyond the elite military. Even the weakest, most ordinary members of the nation—those entirely untrained in warfare—will be infused with immense courage and might to shatter the adversary [רש"י, תורה תמימה, צרור המור, מלבי"ם].

A striking exponential leap occurs as the scale of the battle grows. Initially, five fighters defeat a hundred, establishing a ratio of one to twenty. Yet, a hundred fighters are promised to defeat ten thousand, shifting the ratio to one to a hundred. The primary approach among commentators is that this is not a dry mathematical equation but a profound spiritual reality. A small group united by the Torah is fundamentally different from a massive group united by it. As more people gather in collective observance, their strength does not merely add up; it multiplies exponentially, making the merit of the many vastly superior to the merit of individuals [רש"י, רבנו בחיי, חזקוני, הכתב והקבלה]. Others suggest the calculation is perfectly exact: it refers to a hundred groups of five people—totaling five hundred—pursuing ten thousand, thereby maintaining the original ratio of one to twenty [רבנו בחיי, רא"ש, פענח רזא]. Alternatively, this may not be a mathematical formula at all, but simply a human idiom used to illustrate a vast, overwhelming multitude [אבן עזרא].

This blessing of victory initially appears to pale in comparison to a later prophetic warning where a single person chases a thousand. Given the principle that God's measure of reward always exceeds His measure of punishment, the numbers here seem surprisingly low. Commentators resolve this by distinguishing between the types of combat. The later prophecy describes enemies fleeing in sheer terror—a relatively effortless retreat requiring no physical contact. The blessing here, however, describes an active, grueling pursuit that ends in actual combat and death by the sword, which demands significantly more exertion and heroism, accounting for the smaller numbers [רא"ש, הדר זקנים, ברטנורא, ברכת אשר]. Another perspective suggests a difference in the fighters themselves. The promise of one defeating twenty applies to the weakest members of the nation, whereas the later prophecy refers to the elite, extraordinary warriors, who are capable of routing a thousand each [אור החיים, משכיל לדוד].

The culmination of this victory emphasizes the specific, miraculous manner of the enemy's defeat. God will instill such deep dread in the hearts of the adversaries that they will flee in panic, stumbling repeatedly without any chance of recovery [רמב״ן, אבן עזרא]. Furthermore, their physical fall will defy nature. Typically, a running person who trips falls forward, in the direction of their momentum. Here, the enemies will miraculously fall backward, landing directly at the feet of their pursuers, sparing the victors the effort of stepping forward to strike them [רש"י, משכיל לדוד, חנוכת התורה]. Ultimately, struck by blindness and utter chaos, the enemy forces will turn on themselves, falling by each other's swords [אור החיים].