The journey into the land required crossing the Jordan River, but the chosen path was not born out of necessity. The Israelites could have easily crossed at simpler, more convenient locations. The true significance of the event lay instead in the open miracle performed for the entire nation to witness [ביאור שטיינזלץ].
God chose this moment to elevate Joshua's leadership. By splitting the waters of the Jordan before him, God mirrored the exact way He had split the sea for Moses [רד״ק]. Witnessing this extraordinary event, the people realized that the immense miracle was performed specifically for Joshua and to honor him [מלבי״ם]. As a direct result, the nation developed a profound reverence for Joshua, matching the awe they had once held for Moses. This deep respect for his leadership was firmly established and lasted for the rest of his life [ביאור שטיינזלץ].