I’d encourage you to read “George Washington’s Sacred Fire” by Peter Lillback, Phd. He has written the most comprehensive expose of George Washington’s faith after conducting 15 years of exhaustive research on this subject.

His conclusion is as follows: ‘Within this vast collection of Washington’s own words and writings, we now have a remarkable ability to uncover what earlier scholars were unable to access. And when we let Washington’s own words and deeds speak for his faith we get quite a different perspective than that of most recent modern historians. Washington referred to himself frequently using the words “ardent,” “fervent,” “pious,” and “devout.” There are over one hundred different prayers composed and written by Washington in his own hand, with his own words, in his writings. He described himself as one of the deepest men of faith of his day when he confessed to a clergyman, “No Man has a more perfect Reliance on the alwise, and powerful dispensations of the Supreme Being than I have nor thinks his aid more necessary.”

Rather than avoid the word “God,” on the very first national Thanksgiving under the U.S. Constitution, he said, “It is the duty of all Nations to acknowledge the providence of Almighty God, to obey his will, to be grateful for his benefits, and humbly to implore his protection and favor.” Although he never once used the word “Deist” in his voluminous writings, he often mentioned religion, Christianity, and the Gospel. He spoke of Christ as “the divine Author of our blessed religion.” He encouraged missionaries who were seeking to “Christianize” the “aboriginals.” He took an oath in a private letter, “on my honor and the faith of a Christian.” He wrote of “the blessed religion revealed in the Word of God.” He encouraged seekers to learn “the religion of Jesus Christ.” He even said to his soldiers, “To the distinguished Character of Patriot, it should be our highest Glory to add the more distinguished Character of Christian.” Not bad for a “lukewarm” Episcopalian!

Historians ought no longer be permitted to do the legerdemain of turning Washington into a Deist even if they found it necessary and acceptable to do so in the past. Simply put, it is time to let the words and writings of Washington’s faith speak for themselves.”