God established civil government to be an avenger who brings wrath upon those who practice evil. The civil government’s power to use the sword is legitimate in certain limited cases. The Bible has mandated that the power of the sword is to keep the peace, to protect those who do what is right.
The Bible is opposed to centralism, whether it’s political (United Nations) or religious (World Council of Churches). The tower of Babel and God’s scattering of those who were involved in its design were judged because of the potential corruption that is inherent in religious and political centralism.
Many Christian organizations and churches exist exclusively as spiritual fire houses. When they see a fire, they send a fire engine to douse it. They then return to the fire house to polish the fire engine awaiting another call.
Can a biblically-based government (including the civil sphere) operate within the conceptual framework of pluralism? While it depends on the definition of pluralism, let me say that the modern concept of pluralism is one of the most pernicious inventions of the twentieth century designed to eliminate the Christian religion.
The debate in Columbus’ day was not over whether the Earth was flat or round. Rather, the width of the ocean was the crucial factor; the distance between continents determined the cost and feasibility of an expedition. "The issue was the width of the ocean; and therein the opposition was right." Columbus had underestimated the circumference of the Earth and the width of the ocean by a significant number of miles.