The departure from the Sinai desert marks a dramatic turning point in the history of the Israelites. After a long, formative period of encampment at the foot of the mountain, the nation sets out not as a wandering group, but as an organized army heading toward the Promised Land. This initial journey was uniquely characterized by peace, unity, and a collective desire to follow the will of God, standing in sharp contrast to later travels that would be marred by sin and complaint [צרור המור].
The journey began on the twentieth day of the second month, which is the month of Iyar [ביאור שטיינזלץ]. The primary approach among commentators is that the Israelites remained at Mount Sinai for nearly a full year, having arrived at the beginning of the third month of the previous year. This extended stay served a vital purpose. Primarily, the time was dedicated to studying the Torah and the Commandments [ברכת אשר על התורה]. This period is compared to the traditional year of joy celebrated by a new groom and bride, as the nation bonded with the Torah in a state of rest. They departed just days shy of a full year because the magnificent, organized march under their tribal banners was considered an extension of that same honor and greatness [גור אריה]. Additionally, some explain that because they spent the majority of that final month at Sinai, it was considered as though they had completed a full year [שפתי חכמים, דברי דוד].
Setting out on the twentieth of the month was deeply deliberate. It occurred immediately after those who were impure had the chance to offer the Second Passover on the fourteenth day, an event that reaffirmed their destiny as God's nation. It also followed the crafting of the trumpets needed to coordinate the camp's movements [ספורנו, רש ר הירש].
The physical signal to move was the lifting of the cloud, marking the first time the tribes marched in a structured formation under their respective banners [אבן עזרא, ביאור יש״ר, אברבנאל]. The cloud guided them through the vast and intimidating desert toward Kadesh Barnea, the first city on the border of the Promised Land [ספורנו]. Beyond the physical guidance and the direct instructions God gave to Moses, these travels held a deeper inner dimension. The various stops in the desert corresponded to elevated spiritual waypoints that the nation was required to experience [מלבי״ם].
The cloud had rested over the Tabernacle of the Testimony. This specific focus on the concept of testimony points directly to the Tablets and the Torah, illustrating that the Torah is the essential bond that allows the Divine Presence to dwell within the nation [רש ר הירש]. As the cloud lifted, the Tabernacle was dismantled, and its carriers set out in perfect, respectful order. The families of Gershon and Merari, responsible for the structural components of the Tabernacle, marched near the front of the camp. Meanwhile, the Ark of the Covenant and the holy vessels were carried by the family of Kohath in the middle of the procession. This precise arrangement ensured that by the time the Ark arrived at the new campsite, the tent would already be fully erected and ready to house it, ensuring the holy vessels would never suffer the disrespect of waiting outside [אברבנאל].