 The fall of the angels constitutes the paradigm case [of evil-originating free choice] since, unlike Adam’s and Eve’s sin in the garden, the first angelic sin is entirely unprecedented. We can think of that first evil free choice as constituting primal sin. The first sin deserves to be called primal, however, not just because it is temporally first but also because it is something radically new in creation: the first evil appears against a backdrop of utter goodness. All things created by God, including the rational creatures whose free choices are the original evils, are wholly good and without flaw.…There can be no context of defect or corruption into which the first sin fits. Good creatures with good wills voluntarily introduce evil into a world where there was none before. Primal sin is not only unprecedented but also seemingly unprepared for and unprompted. (MacDonald 1998: 110–1; see also Rogers 2008 and Couenhoven 2013: chapter 1)