'Nations' in the Bible

By whom we have received grace and apostleship, for obedience to the faith among all nations, for his name:

(As it is written, I have made thee a father of many nations,) before him whom he believed, even God, who quickeneth the dead, and calleth those things which be not as though they were.

Who against hope believed in hope, that he might become the father of many nations; according to that which was spoken, So shall thy seed be.

But now is made manifest, and by the scriptures of the prophets, according to the commandment of the everlasting God, made known to all nations for the obedience of faith: