'Nations' in the Bible

The vision of Obadiah. Thus saith the Lord Jehovah concerning Edom: We have heard a report from Jehovah, and an ambassador is sent among the nations. Arise ye, and let us rise up against her in battle.

Behold, I have made thee small among the nations; thou art greatly despised.

For the day of Jehovah is near upon all the nations: as thou hast done, it shall be done unto thee: thy recompence shall return upon thine own head.

For as ye have drunk upon my holy mountain, so shall all the nations drink continually; yea, they shall drink, and shall swallow down, and they shall be as though they had not been.