The daily provision of manna in the wilderness came with a strict condition: the Israelites were to gather only what they needed for the day and leave nothing for the morning. Yet, a crisis of trust and discipline quickly emerged when a group of individuals deliberately ignored the directive of Moses. The very same people who refused to listen were the ones who hoarded the heavenly food [אבן עזרא, קאסוטו]. The primary approach among commentators is that these instigators were Dathan and Abiram, figures notorious for their quarrels [רש״י, שפתי חכמים, גור אריה]. Their motivation may have been highly calculated. The manna functioned as a divine legal tool to resolve interpersonal disputes, revealing the truth based on the exact measure found in each person's tent. By intentionally hoarding the manna, Dathan and Abiram sought to disrupt this divine mechanism of proof, allowing them to continue generating strife [חתם סופר].
Beyond this specific disruption, commentators offer several perspectives on what drove these individuals to rebel. The hoarding likely stemmed from a fundamental lack of faith and an anxiety about the future, as they doubted whether God would truly provide food again the next day [שד״ל, ביאור יש״ר, קאסוטו, שטיינזלץ]. Alternatively, their actions were an act of deliberate defiance designed to test Moses and challenge his authority [ספורנו, הכתב והקבלה]. Another view suggests that these individuals simply did not respect Moses when they believed he was speaking from his own understanding; they only heeded his words when they felt the Divine Presence was actively speaking through him [העמק דבר].
The consequence of their disobedience was immediate and visceral, as the hoarded manna bred worms and rotted. The Hebrew terminology used for this decay shares a linguistic root with maggots and worms, rather than implying any sense of elevation [אבן עזרא, רש״י, מזרחי]. However, a profound moral lesson is embedded in this linguistic connection. Arrogance and haughtiness, which often arise when a person is full and satisfied, ultimately lead a person to decay and worms [קיצור בעל הטורים, נחל קדומים, רש״ר הירש].
The specific progression of the decay, where the manna bred worms before emitting a stench, sparks a debate regarding the natural versus miraculous nature of the event. One perspective argues that the text presents a chronological reversal. In reality, the manna began to smell first and subsequently attracted worms, following the natural process of decomposition [רש״י, מזרחי, הכתב והקבלה]. Conversely, others insist on a literal reading. Because the manna was a sweet, heavenly bread, it was not prone to natural putrefaction. Therefore, the worms developed first, and it was their presence that generated the foul odor [רמב״ן, אור החיים, מלבי״ם, רש״ר הירש]. A third approach harmonizes these views by highlighting a specific miracle. Had the manna begun to stink immediately in the evening, the transgressors would have noticed the smell and secretly disposed of the evidence. Instead, God caused the manna to fill with worms silently throughout the night without emitting any odor. It only began to stink in the morning, thereby publicly exposing the offenders and demonstrating that those who sin in secret are ultimately punished in the open [רמב״ן, שפתי כהן, ברכת אשר].
The immediate aftermath of this failure was met with intense anger from Moses. His frustration stemmed from seeing a pure, spiritual gift degraded into something foul [שפתי כהן], as well as the blatant lack of trust the people displayed [קאסוטו]. Moses was deeply disappointed, realizing that moving forward, the people might gather their daily portion out of fear that it would rot rather than out of genuine reliance on God. Interestingly, God Himself did not express anger at this moment. The weekday failure and the resulting decay were permitted to happen so that they would later magnify and highlight the immense miracle of the Sabbath, a day when the manna would remain perfectly whole and free of worms [ברכת אשר].