Categories Christianity makes karma relative thru the mercy principle. You might say the "relational" trumps the absolute in their world view. The world, however, is absolute for them ( which I would agree with) and God's nature is too (I disagree). The world may or not be contingent (being understood thru "practical knowledge" ), and Aristotle 's categories may be compatible with Kant. However karma for a Kantian like myself is absolute. It is the only absolute discovered by speculation. Lastly, if it's possible for completely corrupted people to enjoy things, I wouldn't simply say with the Bible "the sun shines on the good and evil" . It seems they must be accounted for thievery of the universe, by the universe. Christians (among whom Kant was not one) are willing to believe with certainty that they are sinners BECAUSE they have a remedy before them in the cross of Jesus. If you take away atonement, they would ask the "what have I truly done wrong". All that can be said to them at that point is that justice rules over us all. That is absolute