'Nations' in the Bible

Which Thou hast made ready in the sight of all nations--

For though the nations of the world pursue these things, as for you, your Father knows that you need them.

"There will be signs in sun, moon, and stars; and on earth anguish among the nations in their bewilderment at the roaring of the sea and its billows;

and that proclamation would be made, in His name, of repentance and forgiveness of sins to all the nations, beginning in Jerusalem.