What does Isaiah 2:3 mean?

Crowds from many nations will say, 'Come on, let's go up to the Lord's mountain, to the house of the God of Jacob. He'll teach us how to live, and we'll walk in His ways.' Because God's instructions will come from Zion, and His word from Jerusalem. Isaiah 2:3 - Modern Text Bible

(People everywhere will want to learn from God and live by His guidance, seeing Jerusalem as the source of true wisdom.)