Abstract

Do humans have a reliable conscience? Do we have generally reliable (though fallible) moral intuitions? Many believe so. However, this idea is hard to reconcile with two broad scientific findings. First, consider the extensive moral diversity documented in the scientific literature. The moral differences we find across cultures and history should make us wonder whether we humans really do have a reliable conscience. Second, consider the influential role of culture. The scientific literature tells us that cultural processes largely determine the specific content of our moral norms and intuitions. But this raises a problem. Cultural processes seem highly contingent: they can easily lead humans to all sorts of moral intuitions, including nasty ones. So why should we trust our culturally shaped conscience? Elsewhere I have argued that secular “moral objectivists” or “moral realists” have no good explanation (Braddock 2016; 2021). Now my question is this: can we explain the reliability of our conscience theologically, in a way that accommodates the scientific findings of moral diversity and the role of culture? Can theology’s doctrine of conscience succeed where secular moral philosophy has failed? That is my puzzle, which I explore in this paper.