Published online by Cambridge University Press: 04 November 2013
The question of why humanity first chose to sin is an extension to the problem of evil to which the free-will defence does not easily apply. In De libero arbitrio and elsewhere Augustine argues that as an instance of evil, the fall is necessarily inexplicable. In this article, I identify the problems with this response and attempt to construct an alternative based on Peter van Inwagen's free will ‘mysterianism’. I will argue that the origin of evil is inexplicable not because it is an instance of evil, but because it is an instance of free will.