'Nations' in the Bible

And the fame of David went out into all lands; and the LORD brought the fear of him upon all nations.

Declare his glory among the heathen; his marvellous works among all nations.

Let the heavens be glad, and let the earth rejoice: and let men say among the nations, The LORD reigneth.

And what one nation in the earth is like thy people Israel, whom God went to redeem to be his own people, to make thee a name of greatness and terribleness, by driving out nations from before thy people, whom thou hast redeemed out of Egypt?

Them also king David dedicated unto the LORD, with the silver and the gold that he brought from all these nations; from Edom, and from Moab, and from the children of Ammon, and from the Philistines, and from Amalek.