Esias 2:3

3 And many nations shall go and say, Come, and let us go up to the mountain of the Lord, and to the house of the God of Jacob; and he will tell us his way, and we will walk in it: for out of Sion shall go forth the law, and the word of the Lord out of Jerusalem.

Esias 2:3 In-Context

1 The word which came to Esaias the son of Amos concerning Judea, and concerning Jerusalem.
2 For in the last days the mountain of the Lord shall be glorious, and the house of God on the top of the mountains, and it shall be exalted above the hills; and all nations shall come to it.
3 And many nations shall go and say, Come, and let us go up to the mountain of the Lord, and to the house of the God of Jacob; and he will tell us his way, and we will walk in it: for out of Sion shall go forth the law, and the word of the Lord out of Jerusalem.
4 And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plow-shares, and their spears into sickles: and nation shall not take up sword against nation, neither shall they learn to war any more.
5 And now, O house of Jacob, come, let us walk in the light of the Lord.

The Brenton translation of the Septuagint is in the public domain.