Out of the distance and isolation of exile, a prophetic call breaks through to announce an approaching redemption. This vision portrays a massive return to Jerusalem, where nature itself is harnessed to ease the journey of the returning exiles, with God personally leading the way. Commentators offer different perspectives on the identity of the voice making this announcement. It is understood by some as the voice of the Holy Spirit [רש״י], while others identify it as the voices of the heralds of redemption [אבן עזרא, ביאור שטיינזלץ]. Another approach suggests that this is not a physical sound at all, but rather a profound prophetic experience in which the prophet feels as though a herald is declaring salvation [רד״ק, מצודת דוד, שד״ל, מלבי״ם].
The call itself is directed either at the nations of the world [אבן עזרא] or serves as a general command to prepare the route for the returning people. Preparing this path requires removing obstacles and stumbling blocks to construct a raised, well-paved highway [מצודת ציון, ביאור שטיינזלץ]. This grand road is prepared not merely for the people, but first and foremost for God Himself, who will march ahead of His nation to guide them home [רד״ק, מצודת דוד, שד״ל, צאינה וראינה]. This divine leadership brings history full circle, mirroring the way God guided the Israelites during the Exodus from Egypt [שד״ל].
The terrain for this journey encompasses both desert and wasteland. While some view these simply as synonymous descriptions of a desolate landscape [מצודת ציון, אבן עזרא], others see a fundamental distinction that reflects different stages of redemption. The desert represents the original miraculous route of the Exodus. Because a path was already forged there in the past, it only requires clearing away accumulated obstacles to reawaken those historical miracles. Conversely, the wasteland is a harsh, untrodden wilderness filled with thorns. There, merely clearing debris is not enough; a completely new highway must be paved, signaling new and unprecedented miracles [מלבי״ם]. This distinction is also reflected in the specific titles used for God. In the context of the desert, God is referred to as the Creator who renews nature. In the wasteland, the site of entirely new miracles, He is referred to by a title that emphasizes His personal connection, love, and special providence over the people of Israel [מלבי״ם].
On a symbolic level, preparing this path represents a deep process of spiritual repair. The call in the desert acts as an internal plea for an individual to cleanse themselves of sin and return to God. The wasteland symbolizes a complex reality where good and evil are intertwined, and paving a road through it means actively extracting the good from the bad through righteous deeds [אדרת אליהו]. Ultimately, the profound repentance of the redemption era will transform past failures into merits. The historical sins committed by the Israelites in the desert, such as the sin of the spies, and in the plains of Moab will be completely rectified. It will be considered as though the people had paved a road for God in those very locations. This transformative spiritual process will even impact non-believers, who are compared to a tall but fruitless willow tree; in the Messianic era, all will recognize the truth and return to serve God with a whole heart [אהבת יהונתן].