דברים, פרק י״א, פסוק ח׳

The fulfillment of the Israelites' national destiny and their successful conquest of the Promised Land are entirely dependent on their spiritual loyalty. The physical strength required to inherit the land does not come from standard military might, but from absolute devotion to God's instructions, which serves as the essential condition for existing in the territory. The requirement to uphold these divine instructions is understood in several ways. One perspective views it as a specific directive to erect stones in the Jordan River upon entering the land and to write the Torah upon them, creating a lasting testimony for future generations [ספורנו]. However, the primary approach among commentators is that this represents a comprehensive concept. Some view it as an expression of the overall destiny of the Israelites among the nations [רש״ר הירש], while others emphasize a commitment to persistent Torah study [אור החיים]. Another approach highlights that this requires fulfilling the core of the Commandments alongside every minor detail and supplementary rule, driven by a deep love for God [העמק דבר]. Furthermore, a subtle shift from singular to plural phrasing reveals that the responsibility to uphold the Torah rests upon the entire community as a whole, rather than just the individual [אלשיך].

The assurance of strength and successful inheritance sparks a fascinating discussion about the relationship between spirituality and military power. One might assume that dedicating time to Torah study could weaken the nation and detract from their military readiness. Instead, commentators explain that the Torah is precisely what grants the strength and heroism needed to succeed in God's battles [אור החיים, ביאור יש״ר]. Strict adherence to the finer details of the Commandments prevents disaster and guarantees that the nation's resolve will not falter when facing hardship [העמק דבר]. Although God had already sworn to the forefathers that He would give the land to their descendants, this oath did not guarantee a quick, easy conquest or a long life there. Therefore, it becomes clear that only by keeping the Commandments will the nation merit a swift victory without prolonged conflict, allowing them to inherit the land immediately upon arrival [אלשיך]. Ultimately, keeping the Torah is the absolute and fundamental condition for both the initial success of the conquest and the long-term survival of the Israelites on their soil [מלבי״ם, אברבנאל].

The framing of this promise raises a potential theological issue, as it might imply that the Commandments should be performed specifically to receive a reward. To counter this idea, a large group of commentators clarifies that the goal of performing the Commandments is not to gain strength. Instead, they must be fulfilled out of pure love. The promise of strength is not a transactional condition, but rather a divine assurance. God is informing the people that if they serve Him out of love, the natural outcome and reward will be enduring strength and a long life in the land [הדר זקנים, דעת זקנים, בכור שור, חזקוני, ברכת אשר].