במדבר, פרק ט׳, פסוק כ״א

The journey through the wilderness was an exercise in absolute uncertainty, demanding extraordinary faith and discipline from the Israelites. The unpredictable schedule of their encampments, which ranged from a single night to months or years, was not random but served a profound spiritual purpose. The route was designed to gather and elevate sparks of holiness scattered throughout the desert. God determined the exact duration of each stop based entirely on how long it took to complete this spiritual work in that specific location [אור החיים].

The shortest encampments lasted merely from evening until morning. This brief overnight pause offered no real chance to rest, organize supplies, or care for livestock, forcing the people to pack up almost immediately [ספורנו, הכתב והקבלה, העמק דבר]. During these rapid overnight stops, the Tabernacle was not even assembled, as it was never erected at night [מלבי״ם]. Staying for a full day and night presented an even greater test of endurance. In these instances, the Israelites would begin the exhausting work of unloading equipment and pitching tents, only to be forced to dismantle everything and resume their march shortly after [העמק דבר, מלבי״ם]. Enduring such immense physical strain and constant restlessness without complaint stands as a powerful testament to the people's righteousness and their unwavering obedience to God [מלבי״ם].

Amidst this rigorous schedule, God showed mercy regarding their departure times. He spared the people the hardship of setting out in the late afternoon or evening, ensuring that the signal to move always came in the morning [ספורנו, בכור שור, חזקוני, צאינה וראינה]. However, opinions differ on whether actual travel ever occurred during the night. Some commentators suggest the Israelites did occasionally march through the darkness [אבן עזרא, ביאור שטיינזלץ, אבי עזר], while others interpret the nighttime references simply as a continuous twenty-four-hour period of resting in the camp [אבן עזרא].

Ultimately, the divine presence that guided them remained singular and constant. Even when referencing the night, the guiding force is described strictly as a cloud lifting, rather than a pillar of fire. This highlights that there were not two separate phenomena; rather, the very same cloud that led the Israelites by day took on a glowing, fiery appearance in the dark [שד״ל, העמק דבר].