'Nation' in the Bible

And Haman said to King Ahasuerus, There is a certain nation living here and there in small groups among the people in all the divisions of your kingdom; their laws are different from those of any other nation, and they do not keep the king's laws: for this reason it is not right for the king to let them be.

For how is it possible for me to see the evil which is to overtake my nation? how may I see the destruction of my people?

For Mordecai the Jew was second only to King Ahasuerus, and great among the Jews and in favor with his many kinsmen, one who sought the good of his people and one who spoke for the welfare of his whole nation.