A divine promise guarantees the ultimate protection of the Israelites and their land, marking the definitive end of their long period of subjugation. God declares that He will establish a protective presence around His home, which represents the Israelites, the city of Jerusalem, and the Temple. He will surround them much like a military camp guarding against any threat.
The primary approach among commentators is that this divine guard will defend Israel against invading foreign armies seeking to cause harm. Another perspective suggests the defense is specifically against enemies attempting to set up a fortified military outpost or lay siege to the city [רש״י, ביאור שטיינזלץ]. This protection will be absolute. Foreign forces will no longer be permitted to march through the land of Israel, whether they are on their way to battle or returning from it [מלבי״ם, מצודת דוד]. Consequently, the people will never again be overrun by an oppressor who pressures and subjugates them [מצודת ציון], completely reversing the painful reality of the past.
The declaration concludes with a statement about seeing this new reality, though commentators differ on who is speaking. The first approach understands this as the voice of God. According to this view, God declares that although He previously hid His face, He now clearly sees the suffering, poverty, and endless wandering of the Israelites in exile. He looks upon them with deep compassion, ready to bring salvation [רש״י, רד״ק, מצודת דוד]. Alternatively, the words are attributed to the prophet Zechariah, who testifies that he has just witnessed this promise of salvation in a prophetic vision [אבן עזרא, אברבנאל]. A third interpretation connects this sight to the future, suggesting that the people themselves will witness the downfall of their enemies and the conquest of hostile cities with their own eyes [ביאור שטיינזלץ].
The exact timing of this promised era remains a subject of discussion. While some attribute these events to the era of the Second Temple [אבן עזרא], others argue strongly that such absolute security was never achieved in the past, as foreign nations continued to march through the land. Therefore, this prophecy must be pointing toward a complete fulfillment in the future [אברבנאל].