'Nations' in the Bible

And many nations 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 of Zion, and the word of the LORD from Jerusalem.

And he shall judge among many people, and rebuke strong nations 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 learn war any more.

Now also many nations are gathered against thee, that say, Let her be defiled, and let our eye look upon Zion.

The nations shall see and be confounded at all their might: they shall lay their hand upon their mouth, their ears shall be deaf.