בראשית, פרק ג׳, פסוק כ״ב

Following the consumption of the forbidden fruit, human nature undergoes a profound transformation, acquiring new traits that thrust humanity into a deeply complex reality. Having awakened to the power of independent knowledge, a pressing need arises to block access to the source of eternal life, as combining immortality with a fallen state would prove disastrous. The primary approach among commentators is that God addresses the heavenly court, noting that humanity has now become akin to the celestial beings [אבן עזרא, רד״ק, רבינו בחיי, קאסוטו]. Alternatively, this divine observation highlights humanity's newfound uniqueness; just as God is singular in the upper realms, the human being is now entirely unique in the lower world, possessing a moral discernment that separates him from the animal kingdom [רש״י, גור אריה, משכיל לדוד, דברי דוד].

This unique status is fundamentally tied to the acquisition of free will. Humanity now understands good and evil independently, having faced two distinct paths and made a conscious choice without coercion [ספורנו, הכתב והקבלה, רש״ר הירש, רס״ג]. However, this newfound independence also represents a tragic fragmentation. While humanity was previously an entirely spiritual entity, the human being is now drawn exclusively toward his physical and material components [תולדות יצחק, מלבי״ם, בית הלוי]. Viewed through another lens, the divine reaction carries a tone of profound irony, remarking on how humanity has achieved the very likeness they hoped to attain through their transgression [אברבנאל].

The discovery of good and evil marks a sharp departure from an existence of natural simplicity. Human action shifts from a state of pure, uncalculated living to one driven by intense self-awareness and the calculated pursuit of physical pleasure [שד״ל, ביאור שטיינזלץ]. Before the transgression, the inclination toward evil existed only as an external force. Now, however, impurity has penetrated the human interior. The desire for wrongdoing has become woven into the very fabric of human essence, rendering the internal moral struggle significantly more difficult [בית הלוי].

This radical shift naturally raises the question of why access to the source of eternal life was not restricted from the very beginning. Before the introduction of sin, humanity simply had no need for it and would not have consumed it, acting only in accordance with divine instruction [רמב״ן, טור הארוך]. Furthermore, eternal life functions much like a medicine designed to heal the specific damage caused by the knowledge of evil. Just as a cure is irrelevant to a perfectly healthy person, eternal life would have no effect on someone who had not yet been subjected to mortality [פני דוד, הדר זקנים, בכור שור]. Additionally, God intentionally refrained from explicitly forbidding the life-giving fruit earlier, knowing that a direct prohibition might needlessly provoke the evil inclination and invite further enticement [אור החיים].

Now, having been exposed to the reality of death, there is a distinct danger that humanity will desperately seek a way to escape it by breaching the boundaries of the garden [ביאור שטיינזלץ, חזקוני]. Achieving eternal life in this compromised state carries severe consequences. Spiritually, if a human were to live forever in a physical body tainted by sin, he would remain eternally trapped in the pursuit of material desires, permanently unable to achieve spiritual fulfillment or the correction of his soul. In this light, mortality is not merely a punishment, but a necessary process of physical purification designed to eventually restore humanity to its original spiritual heights [ספורנו, מלבי״ם, ביאור יש״ר, אלשיך, חתם סופר]. Theologically, an immortal human presents a grave danger; future generations might mistakenly worship him as a deity, seeing an ancient, infinitely wise being who alone defies death [רש״י, גור אריה, צרור המור].

Therefore, expulsion from the garden becomes an absolute necessity to prevent access to a fruit whose natural properties strengthen the body and prolong existence [רד״ק, רס״ג]. This banishment transitions humanity onto a new historical path defined by labor, moral struggle, and the difficult work of spiritual return [רש״ר הירש, אברבנאל]. Ultimately, the moment preceding the expulsion was not merely a declaration of consequence but an invitation. God provided a final opportunity for humanity to repent, and it was only when this silent offer was refused that banishment became the inevitable reality [אור החיים, רבינו בחיי].