The Tribe of Levi occupies a distinct social and economic position among the Israelites. Denied agricultural land ownership, they are not meant to be farmers working inherited estates. Instead, their lives are centered entirely on spiritual matters and holy service [ביאור שטיינזלץ]. Interestingly, this restriction on land ownership applies specifically to settling within the borders of Israel. When it comes to the spoils of war gathered outside the land, the Levites may still receive a share just like the rest of the nation [העמק דבר, רלב״ג].
The exact scope of their exclusion from the land is understood through several different lenses. From a familial perspective, they are prevented from inheriting not only alongside the other tribes, but also alongside Levi's five full brothers, the sons of Leah. This clarification ensures no one mistakenly assumes that close family ties might grant them a shared portion [רא״ש, דעת זקנים, בכור שור, חזקוני, רבנו בחיי, יריעות שלמה]. Historically, they were excluded from the land distribution whether it involved the portions given directly by Moses and Joshua to five of the tribes, or the territories claimed later by the remaining seven [חזקוני, מזרחי].
Looking at the land itself, the restriction applies equally to the highly praised territories of the five Canaanite nations known for flowing with milk and honey, as well as the less prized lands of the remaining two nations [הטור בשם הרמב״ן]. Furthermore, this prohibition is vast in its geographic and temporal reach. It extends eastward across the Jordan River [צפנת פענח] and remains in effect for the future. Even when the borders eventually expand to include the territories of three additional promised nations, the Levites will still not take a portion of the land [מלבי״ם, אדרת אליהו, מזרחי].
In place of physical territory, God serves as their inheritance. Their material needs are met through the gifts, offerings, and tithes provided by the people in return for their service in the Temple [העמק דבר, רלב״ג, נתינה לגר, אדרת אליהו]. Beyond the practical economics, there is a deep spiritual resonance to this arrangement. Counting Jacob's sons from youngest to oldest, Levi is the tenth son. Just as a tenth of a flock is separated as a holy tithe, the entire Tribe of Levi is dedicated as a tithe to God [רבנו בחיי, תולדות יצחק]. As a result, their prosperity is disconnected from the natural laws of agriculture, relying instead entirely on direct divine providence [העמק דבר]. This unique way of life stands as the fulfillment of an earlier promise made to Aaron, assuring him that God alone would be his portion and inheritance [רש״י, אדרת אליהו].