Nations are not the same things as states or governments. They are organic social groupings of people. Usually a nation has a common language, but a nation always shares a common cultural outlook, stemming from religious presuppositions, and a nation always desires to govern itself. There are many nations because God is Three and yet One, and international diversity reflects His being. At the Tower of Babel, early man refused to carry out God’s plan to diversify humanity, so God forced them to.