In the future, the spiritual heritage of Israel will cease to be the private domain of a single small nation and will instead become a global magnet. People from all over the world will not travel to Jerusalem merely as tourists to admire a magnificent structure. Rather, they will arrive with a genuine thirst to willingly embrace God's teachings. Stirred by mutual encouragement, they will urge one another to make the journey up to God's mountain. They specifically seek the house of the God of Jacob. This connection to Jacob is deeply intentional; while Abraham referred to the site as a mountain and Isaac called it a field, it was Jacob who first called it a house, and so the Temple bears his legacy [רש״י].
Upon arriving, the nations will actively seek guidance and instruction in God's ways. The identity of their teacher is viewed in different ways. God might impart this wisdom through scholars and those deeply versed in the teachings [מצודת דוד], or the teacher could be the Messiah himself [רד״ק]. The instruction they desire spans different levels of commitment. The teachings can be understood as having main roads, which represent the core beliefs and foundations of faith, and smaller branching paths, which symbolize the intricate details of the commandments. The nations express a profound dedication, declaring that even if they are only shown the main roads, they will invest the effort to walk the smaller paths and master the detailed practices [מלבי״ם]. Alternatively, their request suggests they will only adopt a portion of these ways. Instead of taking on the unique commandments of the Israelites, they will focus on learning and applying universal principles of charity and justice [שד״ל].
The culmination of this vision is the recognition that true teaching and the word of God emerge exclusively from Zion and Jerusalem. The primary approach among commentators is that the nations themselves make this joyful declaration, acknowledging the singular source of truth. Conversely, this might be the voice of the prophet, explaining exactly why such a massive influx of people is drawn to this location [רד״ק]. The distinction between Zion and Jerusalem highlights two different centers of leadership. Zion serves as the seat of the high court, the High Priest, and the royal dynasty, providing practical instruction and direction to the world. Jerusalem is the gathering place of the prophets, serving as the source of God's prophetic word [מלבי״ם]. Ultimately, the teachings that flow outward are not imposed religious laws, but rather a profound wisdom that the nations will embrace entirely of their own free will [שד״ל].