Prophetic visions often reveal how historical and spiritual events unfold in the world. Rather than relying on military might or massive human effort, divine leadership sometimes operates through a natural, effortless flow driven entirely by the will of God. This message is vividly illustrated by the vision of a Menorah, where olive oil is produced on its own and flows directly into the lamps without any human touch.
The primary approach among commentators is that this vision serves as a direct promise to Zerubbabel. Just as the oil in the Menorah flows automatically, the divine goal will be accomplished without human struggle. It will not be achieved through armies, large crowds, or physical strength, but solely through the spirit and will of God [מצודת ציון]. The most common understanding is that this promise refers to the building of the Second Temple. The assurance given to Zerubbabel is that the Temple will be constructed without the need for war or standard human assistance. Instead, God will place His spirit upon the Persian king, Darius, who will willingly initiate the project and provide all the necessary building materials. As a result, the Israelites will not need to exert force or rely on their own strenuous efforts [רש״י, אבן עזרא].
However, this perspective faces a practical challenge. In historical reality, building the Second Temple did require significant physical labor, depended on mortal kings, and even forced the builders to hold weapons to protect themselves from enemies [אברבנאל]. Due to this reality, another approach projects the meaning into the future, specifically to the days of the Messiah. In this view, the promise is not just about the physical construction during the time of Zerubbabel, but rather concerns the Messianic king destined to emerge from his descendants. The Messiah's leadership over the nations of the world will not be achieved through military conquest, physical dominance, or the usual systems of nature and governance. Instead, it will be a direct, supernatural providence from God that does not even require the assistance of angels. The nations of the world will willingly submit on their own, mirroring the way the oil flows effortlessly to the lamps [מצודת דוד, מלבי״ם].
A completely different perspective connects the message to the ingathering of the exiles. According to this explanation, after the Men of the Great Assembly, led by Zerubbabel, successfully eliminated the desire for idol worship, Zerubbabel believed the time had come to gather all the scattered exiles of Israel using physical force. He assumed that their oppression by foreign nations had ended. In response, he is informed that bringing the exiles back together will not be accomplished through armies or physical power. Rather, it will happen exclusively through the spirit of God, who will personally gather the people from all the places where they have been scattered [אהבת יהונתן].