Thematic Bible: Nations not warring against each other anymore

The word that Isaiah the son of Amoz saw concerning Judah and Jerusalem. And it shall come to pass in the last of the days or times, that the mountain of the LORD's house shall be confirmed as the head of the mountains and shall be exalted above the hills; and all the Gentiles shall flow unto it. And many peoples shall go and say, Come ye, and let us go up to the mountain of the LORD to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths; for out of Zion shall go forth the law and the word of the LORD from Jerusalem. read more.
And he shall judge among the Gentiles and shall rebuke many peoples; and they shall beat their swords into plowshares and their spears into pruninghooks; nation shall not lift up sword against nation, neither shall they learn war any more.

But it shall come to pass in the last of the times that the mountain of the house of the LORD shall be established as the top of the mountains and higher than all the hills, and peoples shall flow unto it. And many Gentiles shall come 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 teach us of his ways, and we will walk in his paths: for the law shall go forth from Zion and the word of the LORD from Jerusalem. And he shall judge among many peoples and correct strong nations even afar off; and they shall beat their swords into plowshares and their spears into pruninghooks; nation shall not lift up a sword against nation, neither shall they train for war any more. read more.
But each one shall sit under their vine and under their fig tree, and no one shall make them afraid, for the mouth of the LORD of the hosts has spoken it. Even if all the peoples should walk each one in the name of their gods; with all this we will walk in the name of the LORD our God for ever and eternally.