דברים, פרק ל״ג, פסוק כ״ה

As Moses concludes his final blessings to the tribes, he delivers a unique promise that bridges individual prosperity with national destiny. Commentators debate exactly who receives this specific blessing. Some view it as a continuation of the blessing to the tribe of Asher, whose territory sat strategically on the border of the land [רמב״ן, אבן עזרא, רבנו בחיי]. Others see it as a broader transition, a general promise directed at all the Israelites to ensure the security and wholeness of their land, their nation, and their borders [רש״י, ספורנו, רש״ר הירש].

The imagery of iron and copper serves as a powerful metaphor for protection and strength. The primary approach among commentators understands these metals as locks and bars. In this view, the border cities of the land will be heavily fortified against enemies, as if sealed by copper doors and iron bolts that prevent anyone from invading or plundering the region's treasures [רמב״ן, רש״י, ספורנו, תולדות יצחק]. Taking a more geographical perspective, others explain that the mountains surrounding the land will naturally serve as a protective barrier rich in iron and copper deposits [אבן עזרא, רש״י, רבנו בחיי].

Alternatively, the imagery can be understood in a more personal, physical sense, referring to the structural foundation of the human body. This approach promises robust physical health, suggesting that a person's bones and sinews will be as strong as iron and copper, nourished by the rich abundance of olive oil granted to the tribe of Asher [רא״ש, דעת זקנים, בכור שור]. On a spiritual level, another perspective views this protective barrier as the act of the people gathering together in synagogues for prayer. This unity binds the nation together, protecting them like an impenetrable wall of iron and copper during times of war and distress [העמק דבר].

The blessing concludes with a promise regarding the future days of the people, interpreted in several distinct ways. One approach focuses on continuous abundance, suggesting that the land will constantly flow with oil and goodness throughout their lives [רמב״ן, רבנו בחיי, אם למקרא]. A similar view expands this prosperity globally, suggesting that as long as the Israelites follow God's will, the nations of the world will channel their wealth into the land [רש״י].

A different approach, widely accepted among commentators, contrasts the vitality of youth with the physical decline typically associated with old age. According to this view, the blessing guarantees that just as a person's youth is filled with vigor, their later years will remain equally strong, healthy, and fresh, free from bodily collapse or premature aging [רש״י, ספורנו, חזקוני, מלבי״ם, ביאור יש״ר, בכור שור]. Finally, some understand this concluding promise simply as a guarantee of enduring strength [אבן עזרא, רלב״ג, נתינה לגר] or deep tranquility [שד״ל], ensuring that the nation's resilience and peace will last for as long as they live upon the land.