'Nations' in the Bible

And what one nation in the earth is like thy people, even like Israel, whom God went to redeem for a people to himself, and to make him a name, and to do for you great things and terrible, for thy land, before thy people, which thou redeemedst to thee from Egypt, from the nations and their gods?

Which also king David did dedicate unto the LORD, with the silver and gold that he had dedicated of all nations which he subdued;

The nations of Edom and Moab, and the children of Ammon and the Philistines and the Amalekites and the goods he had taken from Hadadezer, the son of Rehob, king of Zobah.

You have freed me from the feuds among my people;You have appointed me the head of nations;a people I had not known serve me.

The one true God completely vindicates me; he makes nations submit to me.

Therefore I will praise You, Lord, among the nations;I will sing about Your name.