Many of the founders were religiously indifferent, at least when it comes to the many flavors of Protestantism that were going around. Most were ardent anti-Catholics and favored religion that reflected a rough understanding of their Biblical values, considering it to be one of the ways to establish a moral people, something necessary for a free government. Personally, many of the founders preferred a watch-setter god, holding higher truth to be supported by natural law, with scripture being a support for the natural law. With so many different versions of Christianity floating around, it was easy for them to skirt the idea of being a Christian nation. After all, what does that mean when most Christians do not agree among themselves about what is Christianity? It was much easier to consider themselves Christian people under a liberal system of government.