I take this chapter as an opportunity to ask what Hume might think of rational religious belief given developments in philosophy of religion, epistemology and contemporary cognitive science of religion (which explores the natural roots of religion). To that end, I will consider some basic findings in the cognitive science of religion concerning the origins of religion in human nature. I will also reflect on some significant developments in twentieth-Century philosophy, including recent developments in religious epistemology, that I think Hume might have found insightful. I will argue that twenty-first-century Hume, perhaps ironically in line with the thought of Alvin Plantinga and Nicholas Wolterstorff (who in turn align themselves with Thomas Reid), would defend rational belief in God.