Jacob’s resolute response to Reuben reveals a profound anxiety for Benjamin’s fate, coupled with a deep lack of trust in his sons. Even with Simeon already imprisoned in Egypt, Jacob is far more consumed by the potential danger threatening Benjamin. He completely rejects Reuben’s suggestion to kill his own two sons if he fails to return Benjamin, viewing the idea as the senseless proposal of a foolish firstborn [רש״י]. Beyond the sheer illogic of sacrificing two more grandchildren to compensate for the loss of a son [בכור שור], Reuben’s offer was an attempt to mortgage his future double inheritance. Jacob subtly reminds him that he has no right to trade his children, as grandchildren draw their lineage and standing directly from their grandfather [דברי דוד]. Dismissing the offer entirely, Jacob addresses the brothers collectively, signaling that Reuben’s proposal does not even warrant a personal reply [משכיל לדוד]. This dismissal stems from a lingering distrust of Reuben due to his past transgressions [רבנו בחיי], as well as a broader suspicion of all the brothers. Jacob’s critique extends to their general moral conduct since the incident at Shechem, which permanently fractured his trust in them [קונטרס חיבה יתירה].
Jacob’s intense attachment to Benjamin is rooted in the boy’s unique position within the family. As the only remaining child of Jacob’s primary wife, Rachel [ספורנו], Benjamin is entirely irreplaceable [בכור שור]. While Simeon has five brothers from the same mother, Benjamin is left utterly alone [אור החיים]. Jacob is firmly convinced of Joseph’s death, reasoning that if he were still alive, some rumor would have reached them over the passing years [רד״ק]. Compounding this grief is a deep-seated fear that a dark pattern of misfortune relentlessly haunts Rachel’s family, having already claimed both the mother and her older son [מלבי״ם].
The primary approach among commentators is that Jacob is genuinely terrified by the perils of the journey. He speaks of disaster not as a mere possibility, but as a grim certainty, knowing from Joseph’s fate that even a seemingly safe road can quickly turn tragic [אור החיים]. Such a disaster would not necessarily mean death; it could easily involve imprisonment or slavery [קונטרס חיבה יתירה]. Jacob recognizes that any human guarantee is useless against the political machinations of a foreign Egyptian ruler [העמק דבר, ביאור יש״ר]. Furthermore, travel itself invites spiritual vulnerability, as accusations from spiritual forces often arise during moments of physical danger [תורה תמימה, הדר זקנים, גור אריה].
However, an alternative perspective suggests that Jacob’s focus on the dangers of the road is merely a diplomatic excuse. Unwilling to publicly shame Reuben by admitting his complete lack of trust, Jacob blames the journey instead. This becomes evident later when Judah offers his own guarantee; Jacob accepts it without ever mentioning the perils of the road, simply because he trusts Judah to truly risk his life for the boy [מזרחי, שפתי חכמים].
Since the loss of Joseph, Jacob had found a small measure of comfort in raising Benjamin. Losing him now would erase the final living memory of Rachel, leaving Jacob entirely bereft of consolation for the rest of his days [רלב״ג]. Unlike his mourning for Joseph, where he spoke of joining his son in grief, Jacob now expresses that the sheer weight of this new sorrow would directly cause his rapid, premature death [העמק דבר, ביאור שטיינזלץ]. Additionally, if Benjamin were taken into slavery rather than killed, Jacob would be unable to observe formal mourning rituals, condemning him to suffer an agonizing, unresolved sadness until the end of his life [קונטרס חיבה יתירה].