Well since wikipedia is never wrong I guess I lose, but just in case maybe you should read some of the original documents, since David Barton actually has them. Why did Jefferson hold Church Services every Sunday at the Capitol?
“In extracting the pure principles which he taught, we should have to strip off the artificial vestments in which they have been muffled by priests, who have travestied them into various forms, as instruments of riches and power to themselves. We must dismiss the Platonists and Plotinists, the Stagyrites and Gamalielites, the Eclectics, the Gnostics and Scholastics, their essences and emanations, their logos and demiurges, aeons and daemons, male and female, with a long train of … or, shall I say at once, of nonsense. We must reduce our volume to the simple evangelists, select, even from them, the very words only of Jesus, paring off the amphibologisms into which they have been led, by forgetting often, or not understanding, what had fallen from him, by giving their own misconceptions as his dicta, and expressing unintelligibly for others what they had not understood themselves. There will be found remaining the most sublime and benevolent code of morals which has ever been offered to man. I have performed this operation for my own use, by cutting verse by verse out of the printed book, and arranging the matter which is evidently his, and which is as easily distinguishable as diamonds in a dunghill. The result is an octavo of forty-six pages, of pure and unsophisticated doctrines.[2]]”
Are those not Jefferson’s own words?
Yes, they are.
[Why did Jefferson hold Church Services every Sunday at the Capitol?]
He didn’t “hold” them - other folks who asked for his permission did.
Was his attendance at those services before or after he rejected the doctrine of the Trinity and wrote the Jefferson Bible?