The revelation of God's presence and His leadership over the Israelites is not a hidden mystery, but a public, tangible, and glorious experience. Throughout history, the Israelites have been granted the ability to witness His divine actions and ways firsthand [אבן עזרא], recognizing His direct involvement in their survival [ביאור שטיינזלץ]. Many commentators trace this profound sight back to the splitting of the Red Sea. In this miraculous event, the Israelites clearly saw God's guidance through the sea via the pillar of cloud [מצודת דוד]. They witnessed twelve distinct paths surrounded by walls of water, perfectly carved out for each individual tribe [אלשיך]. Overwhelmed by this clear display of divine intervention, they broke into song, an act of praise that proved they were truly worthy of being saved [רש״י].
Other perspectives focus on the battlefield rather than the sea. In this view, the Israelites witnessed the crushing defeat of their enemies and clearly recognized that it was God who marched ahead of them in combat [רד״ק]. This clear vision of divine protection also points toward the ultimate future redemption, a time when God's careful watch over the world will be so famous and obvious that the people will witness it with their own eyes [מאירי]. Building on the imagery of military triumph, the scene can also be understood as a grand post-war victory parade. Just as a human king is welcomed back from the battlefield with singers and musicians walking before him, the Israelites go out with drums and dancing to greet God, the commander of armies, as He returns from a victorious battle [מלבי״ם].
The ultimate source or destination of this divine display is deeply tied to the concept of holiness. The primary approach among commentators is that this refers to the heavens, the dwelling place of the holy King, from where He actively directs world events and dispatches angels to assist the Israelites. Alternatively, this holiness represents the Land of Israel itself. It is the destination to which God returns as a conquering victor [מלבי״ם], and the place where the tribes ultimately entered to receive their distinct inheritances, beautifully mirroring the separate paths they walked through the sea [אלשיך]. Finally, the holiness may simply describe God Himself, the ultimate holy King who leads His people [ביאור שטיינזלץ].