שמות, פרק ח׳, פסוק י״ד

The plague of lice marks a dramatic turning point in the struggle between Moses and Aaron and the wise men of Egypt. After successfully replicating the plagues of blood and frogs, the Egyptian sorcerers suddenly find themselves entirely powerless. A fascinating paradox arises when considering their actions: they seemingly performed the required preparations, yet completely failed. The primary approach among commentators is that the sorcerers struck the dust and performed their magical incantations with the intention of creating lice, but unlike their previous attempts, these actions yielded no results [רמב״ן, רבנו בחיי, קאסוטו, ביאור יש״ר].

Alternatively, they may not have been trying to create lice at all, as adding to the infestation would serve no logical purpose. Instead, their goal was to expel and banish the lice from the Egyptians. By attempting to cancel out the plague, they hoped to prove that the actions of Moses were merely reversible sorcery. However, they failed entirely to heal the nation [שד״ל, מלבי״ם, בכור שור, הכתב והקבלה, חזקוני]. A third perspective suggests that since all the dust in the land had already transformed into lice, the sorcerers attempted to conjure lice from elsewhere and bring them into Egypt, yet this too ended in failure [רש״י, גור אריה, שפתי חכמים, מזרחי]. Whatever their exact aim, they relied on their secret arts, utilizing witchcraft [שטיינזלץ], acting in stealth [בכור שור], or employing curses [שפתי כהן].

The commentators offer three primary reasons for this resounding defeat. The first lies in the inherent limitations of the dark arts. Demonic forces and powers of impurity cannot manipulate any creature smaller than a barleycorn [רש״י, תולדות יצחק, רלב״ג, הדר זקנים]. Because something so minuscule is considered lacking in physical substance and essentially nullified in the world, it cannot absorb impurity or be controlled by demonic energy [גור אריה, משכיל לדוד].

The second reason is intensely physical. The power of sorcerers requires their feet to be planted firmly on stable ground. Because the very dust of the earth had turned into a swarming mass of lice beneath their feet, their connection to the earth was severed, instantly nullifying their magical abilities [רא״ש, תולדות יצחק, דעת זקנים, חזקוני]. Furthermore, covered in lice themselves, the sorcerers were overwhelmed by physical torment and deep shame, leaving them unable to concentrate or even face one another [חזקוני, שפתי כהן].

The third reason is profoundly theological. Unlike the previous plagues, the lice represented a completely new creation from nothing, a power reserved exclusively for God. God actively prevented the sorcerers' success to expose their ultimate powerlessness, demonstrating that the plagues were direct Divine interventions rather than mere illusions, and stripping them of their ability to further deceive Pharaoh [רמב״ן, ספורנו, שד״ל, רש״ר הירש].

The continued presence of the lice upon both man and beast serves several critical purposes. It reveals that the sorcerers themselves were not spared from the physical suffering [אבן עזרא, הטור הארוך], and it confirms that the lice were entirely real, not a mere optical illusion [שפתי כהן]. The infestation was severe; the creatures did not merely crawl on the surface of the skin but embedded themselves into the flesh, stinging like arrows [העמק דבר]. Ultimately, they remained as a permanent, humiliating punishment despite every effort to remove them [מלבי״ם, קאסוטו].

This profound humiliation is reflected in a sudden shift in how the sorcerers are addressed. Previously granted the dignified title of the "sorcerers of Egypt," signifying their elite status, their failure here strips them of their prestige. From this moment on, they are referred to simply as "sorcerers," marking the beginning of their complete disappearance from the biblical story [רבנו בחיי].