I argue that Hume's naturalistic explanation of religious belief in the Natural History of Religion has significant epistemic consequences. While he argues in the Dialogues Concerning Natural Religion (and in other works) that belief in God is not justified on the basis of testimony or philosophical argument, this is not enough to show that religious belief is not warranted. In the Natural History, Hume provides a genetic explanation for religious belief. I contend that the explanation of religious belief in the (...) Natural History, given Hume's conclusions in his other works, provides grounds to reject religious belief. Thus, I conclude that the Natural History plays an important role in Hume's overall critique of religion insofar as it is a necessary component in Hume's arsenal against the warrant of religious belief. (shrink)