שמות, פרק י״ז, פסוק ט׳

The first military conflict of the newly freed Israelites marks a profound shift. Instead of relying entirely on open miracles, the nation must now combine human effort with divine assistance. Moses, the leader who previously enacted wonders, delegates the physical combat to the next generation, reserving the spiritual campaign for himself.

Moses selects his disciple Joshua to lead the charge, a choice that is highly deliberate. Moses is hindered from fighting by his advanced age [חומש קהת, קאסוטו]. Furthermore, the nation is not currently worthy of the absolute miracle that would inevitably occur if Moses took the battlefield, making a natural war necessary [שד״ל, ברטנורא, מלבי״ם, ביאור יש״ר]. Joshua, descending from Rachel and Joseph, possesses a deep reverence for God that serves as the perfect spiritual counterweight to the enemy, a descendant of Esau notorious for lacking such reverence [הטור הארוך, תורה תמימה, שפתי כהן]. Joshua's unwavering dedication to Torah study also provides the exact merit needed to repel an attacker who struck precisely because the people's commitment to their spiritual studies had weakened [אור החיים]. When delegating this task, Moses asks Joshua to select the fighters on behalf of them both, rather than making it a personal command for himself alone. This inclusion elevates his disciple to his own level, demonstrating that a student's honor should be cherished as dearly as one's own [רש״י, תורה תמימה, גור אריה].

The process of selecting specific men for battle carries multiple layers. On a practical level, it calls for strong, capable warriors suited for conventional combat [אבן עזרא, רלב״ג, העמק דבר, קאסוטו]. Spiritually, it demands righteous individuals whose moral merit will protect them in the fray [רש״י, מלבי״ם, גור אריה]. There is also a mystical challenge: the enemy employs astrology and sorcery to deploy soldiers destined to survive the year, necessitating Israelite fighters capable of nullifying such dark arts [רש״י, רבנו בחיי, חזקוני, דברי דוד]. Once chosen, these men must physically leave the Israelite camp [אבן עזרא, ביאור יש״ר], stepping out from the divine protection of the Clouds of Glory into the vulnerable, open battlefield where the enemy had initially struck [רש״י, מזרחי, צאינה וראינה].

Scheduling the battle for the following day allows necessary time for military preparation [העמק דבר]. More importantly, this timing synchronizes the physical fighting with Moses's spiritual intervention [רש״י, אבן עזרא הקצר, ביאור יש״ר, שפתי חכמים]. Moses stations himself atop a prominent hill, which some identify as Mount Sinai [אבן עזרא]. From this high ground, he can watch over the warriors with a favorable eye, while the Israelites below can look up, see him spreading his hands in prayer, and draw profound courage [רמב״ן, הטור הארוך, ביאור יש״ר].

In his hand, Moses holds the staff of God. While some view it as a tool for enacting miracles against the enemy, much like the plagues in Egypt [רמב״ן, רלב״ג, שד״ל], others maintain that it functions entirely without miraculous power in this battle. Instead, it serves as a visual focal point, directing the people's hearts toward God so they might pray alongside Moses [ספורנו, מלבי״ם], or acts simply as a raised military banner to boost morale [בכור שור, חזקוני]. Raising the staff is fundamentally an expression of pure faith and absolute trust in God [רש״ר הירש]. Ultimately, Moses brings the staff as a backup plan in case the natural war efforts fail, but he never employs it for an open miracle, as the victory is achieved entirely through hidden divine providence [העמק דבר, ברטנורא].