From The Onion (of course)
"Men like Madison and Jefferson were moved by the ideals of Christianity, and wanted the United States to reflect those values as a Christian nation," continued Mortensen, referring to the "Father of the Constitution," James Madison, considered by many historians to be an atheist, and Thomas Jefferson, an Enlightenment-era thinker who rejected the divinity of Christ and was in France at the time the document was written. "The words on the page speak for themselves."According to sources who have read the nation's charter, the U.S. Constitution and its 27 amendments do not contain the word "God" or "Christ."
This was timely as I got my census form in the mail and marveled at the 'constitutionalists' who aren't going to fill out their form. The census being, of course, one of the few obligations of the federal government explicitly spelled out in the Constitution.