Part XII of the Dialogues concerning Natural Religion offers to the reader a wide range of philosophical positions, depending also on the stratification of the text, which underwent various revisions by the author. Some of Hume’s manuscript interventions can be dated, as M.A. Stewart has shown, but their context has not been investigated yet. In particular, the revision of 1757 has a secret source (Bolingbroke) that allows Hume to discuss the possibility of a deistic alternative to atheism and Christian theism. But deism (or philosophical theism) could not represent a real solution for Hume: while defending himself under that cloak in Part XII, he actually arrives at far more radical conclusions. As for the revision of 1776, it bears the ma...