It is widely accepted that David Hume’s contribution to the free will debate is one of the most influential statements of the “compatibilist” position, where this is understood as the view that human freedom and moral responsibility can be reconciled with (causal) determinism. Hume’s arguments on this subject are found primarily in the sections titled “Of liberty and necessity”, as first presented in A Treatise of Human Nature (2.3.1–2) and, later, in a slightly amended form, in the Enquiry concerning Human Understanding (sec. 8). Although both contributions share the same title, there are, nevertheless, some significant differences between them. This includes, for example, some substantial additions in the Enquiry discussion as it relates to problems of religion, such as predestination and divine foreknowledge. These differences should not, however, be exaggerated. Hume’s basic strategy and compatibilist commitments remain much the same in both works.