The last paragraph:

"This history reminds us that our public religion is, in large measure, an invention of the modern era. The ceremonies and symbols that breathe life into the belief that we are 'one nation, under God' were not, as many Americans believe, created alongside the nation itself. Their parentage stems not from the founding fathers but from an era much closer to our own, the era of our own fathers and mothers, our grandfathers and grandmothers."