Avery Dulles, a leading Catholic theologian reports, "In his college years at William and Mary, [Jefferson] came to admire Francis Bacon, Isaac Newton, and John Locke as three great paragons of wisdom. Under the influence of several professors, he converted to the deist philosophy."[6] Dulles concludes: In summary, then, Jefferson was a deist because he believed in one God, in divine providence, in the divine moral law, and in rewards and punishments after death; but did not believe in supernatural revelation. He was a Christian deist because he saw Christianity as the highest expression of natural religion and Jesus as an incomparably great moral teacher. He was not an orthodox Christian because he rejected, among other things, the doctrines that Jesus was the promised Messiah and the incarnate Son of God. Jefferson's religion is fairly typical of the American form of deism in his day.
http://en.wikipedia.org/wiki/Thomas_Jefferson_and_religion
The rejection of Jesus as the Messiah and the incarnate Son of God is a rejection of the Christian faith.