All orthodox believers accept that ‘God’s ways are not our ways’ and that ‘the peace of God passes all understanding’. The sceptical theist tries to apply these principles to the mystery of evil in the world, by arguing that we cannot tell what the divine purpose might be in the sufferings that we cannot explain. There is a danger that an undisciplined putting of evil into the fog of mystery might free our understanding too much from rational constraint. I argue that by combining sceptical theism with the way that Peter van Inwagen deploys the fact of our fallen nature to explain Divine withdrawal, we can give a rational account of the limitations there are on how we can judge God’s justice.