The crossing of the Jordan River by the two and a half tribes was defined by their specific numbers, their military readiness, and their ultimate destination [ביאור שטיינזלץ]. An estimated forty thousand men took part in this advance [רד״ק]. They marched not as ordinary travelers, but as a fully armed and equipped force, completely prepared for the battles ahead [מצודת ציון].
Their movement into the new land was driven by a higher purpose, as they acted directly on a mission for God [מצודת דוד]. This march fulfilled a solemn agreement these tribes had made during the time of Moses. They committed to fighting for the sake of God, rooted in a deep faith in Him rather than relying on their own physical strength or military confidence [מלבי״ם].
The army made its way toward the plains of Jericho, arriving in a vast, desolate expanse that resembled a barren desert [מצודת ציון]. This wide, unpopulated, and uncultivated plain served as the immediate destination for the armed forces as they prepared for their upcoming campaign [ביאור שטיינזלץ].