There is doubt surrounding the existence of these words, as according to the Jefferson Encyclopedia there is no evidence of these words in any of Mr. Jefferson’s writings.

http://wiki.monticello.org/mediawiki/index.php/Christianity_is_the_best_friend_of_government

I don’t know about the quote, but I know that Jefferson was not a Christian, but rather a deist. Jefferson’s religious beliefs My own opinion is that the difference between deism and atheism is the theory of evolution.

Extremists just love to attach TJ’s name to their made up words. He ought to be flattered, but slightly annoyed.