What does Isaiah 2:3 mean?
Isaiah is describing an unthinkable circumstance for those sitting in his moment of history. He has said that the mountain of the Lord, the temple mount in Jerusalem, where Israel's God is worshipped, will become the most important of all the mountains of the world (Isaiah 2:2).People from all over the world, including non-Jews, will journey to Jerusalem to learn of God's ways and walk in His paths. They will be taught by the God of Jacob Himself. The law and the Word of the Lord will be delivered from Zion, from Jerusalem. The word for law in Hebrew is torah. It means "instructions." God will instruct the people of the world how to follow His paths to become like Him. In other words, all peoples will abandon all other religions to learn from and obey Israel's God.
Later verses give more detail about this hopeful future (Isaiah 2:4).