One of Jefferson’s Earliest Criticisms of Clergy
Jefferson Comes to Washington, DC in 1800—A Practicing Christian by Outward Appearances

On November 27, 1800, Jefferson moved to Washington, D. C. where the new Capitol opened. In Margaret Bayard Smith’s First Forty Years of Washington Society, she wrote: “…During the first winter, Mr. Jefferson regularly attended service on the sabbath-day in the humble church. …The custom of preaching in the Hall …
Those Who Knew Jefferson Personally Defended Him and His Professed Christianity (at this stage of his life)

Those who knew Jefferson personally tended to believe that he was a professing Christian. That does not preclude the fact that in the 1810’s and beyond (after he was president), he entertained privately some serious doubts about core Christian doctrines. Suffice it to say: it is not tenable to say …