This paper has two aims. They are more in the nature of history than law. The first aim is to show that since the fourth century Western civilization has presupposed that there are not one but two sovereigns. Each has a jurisdiction of legitimate operation, and while there are areas of shared cognizance, there are other subject matter areas in which each is noncompetent to perform the tasks of the other. The second aim of this paper is to uncover historical figures that advanced a proposition concerning religious freedom that became the American church-state settlement.
Carl H. Esbeck, Dissent and Disestablishment: The Church-State Settlement in the Early American Republic, 2004 B.Y.U. L. Rev. 1385 (2004)