'Nations' in the Bible

And who is like thy people, like Israel, the one nation in the earth that God went to redeem to be a people to himself, and to make himself a name, and to do for them great things and terrible, for thy land, before thy people, which thou redeemedst to thyself from Egypt, from the nations and their gods?

Them also king David dedicated to Jehovah, with the silver and the gold that he had dedicated of all the nations that he had subdued:

And thou hast delivered me from the strivings of my people, Thou hast kept me to be head of the nations: A people I knew not doth serve me:

Therefore will I give thanks to thee, Jehovah, among the nations, And will sing psalms to thy name.