J. Locke, An Essay Concerning Human Understanding, Book IV, Chapters IX, X, XVII, XVIII, and XIX (Many editions; also available online).
G. Berkeley, Three Dialogues Between Hylas and Philonous (Many editions; also available online).
D. Hume, Dialogues Concerning Natural Religion (Many editions; also available online).
J.L. Mackie, The Miracle of Theism (1982), especially chapters 4, 7, and 8.
J. Bennett, ‘God and matter in Locke’, in C. Mercer and E. O'Neill (eds.), Early Modern Philosophy - Mind, Matter, and Metaphysics (2005).
J. Bennett, Locke, Berkeley, Hume: Central Themes (1971), especially chapters 6 and 7.
D. O’Connor, Routledge Philosophy Guidebook to Hume on Religion (2000).
K. Haakonssen (ed.), The Cambridge History of Eighteenth-Century Philosophy (2006), Section III.
P. Harrison, ‘Religion’ and the Religions in the English Enlightenment (2002).