I had no idea, however, that in Pennsylvania, the cradle of toleration and freedom of religion, it [fanaticism] could have arisen to the height you describe. This must be owing to the growth of Presbyterianism. The blasphemy of the five points of Calvin, and the impossibility of defending them, render their advocates impatient of reasoning, irritable, and prone to denunciation.

Memoirs, Correspondence, and Private Papers of Thomas Jefferson: Late President of the United States (ed. 1829)