"Did America have a Christian Founding? This disputed question, far from being only of historical interest, has important implications for how we conceive of the role of religion in the American republic. Mark David Hall begins by considering two popular answers to the query— “Of course not!” and “Absolutely!”—both of which distort the Founders’ views. After showing that Christian ideas were one of the important intellectual influences on the Founders, he discusses three major areas of agreement with respect to religious liberty and church–state relations at the time of the Founding: Religious liberty is a right and must be protected; the national government should not create an established church, and states should have them only if they encourage and assist Christianity; and religion belongs in the public square. In short, while America did not have a Christian Founding in the sense of creating a theocracy, its Founding was deeply shaped by Christian moral truths. More important, it created a regime that was hospitable to Christians, but also to practitioners of other religions."
Hall, Mark David, "Did America Have a Christian Founding?" (2011). Faculty Publications - Department of History, Politics, and International Studies. 53.