במדבר, פרק י׳, פסוק י״ז

During the Israelites' journeys through the desert, relocating the Tabernacle required precise coordination. Moving God's dwelling place was a highly organized operation designed to maintain the honor of the sacred objects while ensuring practical efficiency for the next encampment. The process began the moment God's cloud folded upward, signaling the start of the journey [העמק דבר]. The Levites were tasked with taking down the structure [אבן עזרא, שטיינזלץ]. Responsibilities were carefully divided: the Gershonites carried the textiles and curtains, while the Merarites transported the wooden boards and solid structural pieces [שטיינזלץ].

The primary approach among commentators is that the sequence of events unfolded precisely as the camp of Judah prepared to move. Aaron and his sons entered the sanctuary, removed the dividing curtain, and used it to cover the Ark and the other sacred vessels. This dismantling occurred immediately as Judah began to travel, rather than after they had left, because it would be disrespectful to leave the Tabernacle standing behind while the tribes had already departed [מזרחי, גור אריה]. Once the holy items were covered, the Gershonites and Merarites dismantled the main structure, loaded the parts onto wagons, and waited for their exact moment of departure [העמק דבר]. They set out on the road, positioned between the camps of Judah and Reuben. Meanwhile, the covered Ark and sacred vessels remained in place on their carrying poles, waiting for Reuben's camp to begin its journey. Only after Reuben moved did the Kohathites depart, carrying the holy vessels on their shoulders [רש״י, רמב״ן, ביאור יש״ר].

This separation in the marching order solved a practical logistical issue. By departing earlier, the Gershonites and Merarites arrived at the new campsite first, giving them ample time to reconstruct the Tabernacle. Consequently, when the Kohathites arrived later with the sacred vessels, the building was already standing and ready to house them immediately, preventing the holy objects from being left outside [מלבי״ם, גור אריה].

However, an older tradition presents a different travel order, suggesting that the Gershonites and Merarites traveled only after the camp of Reuben, with the Kohathites following even later, after the camp of Ephraim. To resolve this apparent contradiction, some explain that although the trumpet blasts signaled Reuben to move, the Gershonites and Merarites hurried to leave just ahead of them, thereby preserving the practical sequence [רמב״ן, ברכת אשר]. Another perspective suggests that the Israelite camps traveled in a square, box-like formation. As a result, the Kohathites had to wait until the western camp of Ephraim advanced toward them. This natural delay provided the necessary time and distance for the Gershonites and Merarites to complete the assembly of the Tabernacle before the vessel carriers arrived [מלבי״ם].