במדבר, פרק ל״ג, פסוק נ״ד

The instructions for dividing the land are purposefully placed between the commands to conquer the territory and to eradicate its idolatry. Dividing the land in advance by a lottery prevented a situation where tribes might evade the difficult work of conquest by assuming others would do it for them. It also prevented conflicts over regions that had fewer idols and were easier to settle [כלי יקר]. The true permanence of their settlement depended entirely on completing the mission of driving out the inhabitants. Without fulfilling this duty, their hold on the land would remain an illusion [מלבי״ם, אבי עזר].

Unlike a standard inheritance among siblings, which can be divided through mutual agreement, apportioning this land required a unique method [העמק דבר]. The lottery was not a game of chance but a divinely approved process that assigned each tribe a specific spiritual mission to purify its designated region [רש״ר הירש]. The distribution was highly systematic, beginning with a broad division among the tribes and followed by internal subdivisions for the individual families [רלב״ג, ביאור שטיינזלץ].

While the lottery established the geographic locations and borders, which remained fixed regardless of whether the terrain was mountainous, flat, or coastal [קיצור בעל הטורים], the actual size of the land granted was determined strictly by population size [מלבי״ם, העמק דבר]. When describing this allocation, the text subtly shifts from a plural expression to a singular one. This change reflects human nature. When a large family receives a vast territory, many people eagerly share in delivering the good news. However, when a small family is allocated a restricted portion, no one wants to be the bearer of bad news, leaving the difficult announcement to a single leader [ברכת אשר]. On a spiritual level, the idea of increasing a portion is also applied to those who dedicate themselves to study, earning abundant reward from God [שפתי כהן].

The allocation of land was strictly contained within tribal boundaries. Even if a family needed more space, they could not expand into territory belonging to another tribe [העמק דבר, מלבי״ם]. Furthermore, the distribution was fundamentally tied to their ancestors, a concept understood in two primary ways. One approach suggests that the land was divided based on the census of the generation that originally left Egypt, rather than the generation actually entering the land. Another perspective explains that this ensured a precise division into twelve distinct borders, with every plot of land clearly named after a defined tribe, including distinct territories for Ephraim and Manasseh [רש״י ומפרשיו].