This thread is to prevent the hijacking of the Why Don’t Some Christians Accept That “Personal Experience of God” Differs thread.
Claim: Justice and mercy are not utterly compatible, but ultimately conflict.
Justice involves adhering to a standard. When standards conflict, justice requires keeping to the higher standard.
Example: people can reasonably claim that a legal principle is unjust because it contradicts a “higher” law of morality, and that disobeying the temporal law is just.
People have common ideas about what principles should define justice (often including things like “fairness” or “goodness”, which are pretty complex), but anything can potentially be considered justice.
Mercy involves setting aside a principle to prevent or reduce suffering. An active choice to avoid inflicting suffering can be considered merciful, if only because it involves setting aside the idea that inflicting or not inflicting are equivalent possibilities.
Examples: reducing the punishment of a guilty person, giving a “second chance” to someone who isn’t entitled to one, etc.
When people discuss these concepts, they often make the implicit assumption that “Goodness” is always the highest principle, and the mercy involves setting aside other principles in favor of Goodness.
From these points, we can conclude that justice and mercy are only partially compatible.
A judge who set aside the principles of the legal system to adhere to a moral standard while reducing suffering can be considered both just (in regards to the moral standard, but not the legal one) and merciful.
But a person who set aside the “highest” principle (whatever that is) for any other might be merciful, but by definition would be unjust. A person who adhered to the highest principle would be just, but they would be unable to be merciful in regards to that principle.
As a result, no one can be completely just and completely merciful. Ultimately, you have to choose one or the other. There are lots of situations where a person can be both (when the highest principle requires that a person set aside lower ones to reduce suffering), but that highest principle cannot be justly set aside for anything.