I find that I can agree fully with my good friend Patrick Henry when he said it cannot be emphasized too strongly or too often that this great nation was founded, not by religionists, but by Christians, not on religions, but on the Gospel of Jesus Christ.
Source, in full
This is clearly spurious. The only published appearance of this attribution yet located is in Baking Recipes of Our Founding Fathers : Authentic Baking Recipes from the Wives and Mothers Of, & Trivia About, the Signers of the Declaration of Independence and Our Constitution (2004), by Robert W. Pelton, p. 213. As the "religionists" passage cited was not written until 1956, and was not misattributed to Henry until 1988, it is obvious that Rutledge (who died in 1800) can neither have said that he agreed with it nor attributed it to Henry.