'Nations' in the Bible

1Obadiah's vision: This is what the Lord God has to say about Edom. We have heard a report from the Lord, and a messenger has been dispatched among the nations to say "Get up! Let us rise up against her to fight!"

"Look! I will make you insignificant among the nations; you will be utterly despised.

"Indeed, the Day of the Lord approaches all nations. As you have done it will be done to you your deeds will return to haunt you! so will all nations drink from the cup of my wrath perpetually.