One of the besetting problems of “Christian America” history writing is that it often interprets biblical quotes from the Founders as evidence that they were personally devout. Sometimes personally devout Founders did also speak in the language of the King James Bible, of course. But a broader range of Founding Fathers – including the skeptical Benjamin Franklin – spoke in the language of the King James because it was the coin of the realm. Even people who had little formal education, like Franklin, (the devout) Patrick Henry, or (the Calvinist-leaning skeptic) Abraham Lincoln thoroughly knew their Bibles from childhood, and spoke its language. So when you observe someone in America before 1877 speaking in the Bible’s phrases, you need to know more about that person before you can declare them a believing Christian.