There are many in the Christian religion that have a concept of God that says he is perfectly just yet also perfectly merciful. This poses an interesting problem which seems to make that completely incoherent.
Justice involves giving someone what they deserve based on their actions. A god then who is ALL just, would be just to all humans without exception. To make an exception would be to not be “all just”. Yet, Christians also speak of God being a merciful God. Mercy involves NOT giving someone what they in fact do deserve. So it would seem that if God is merciful at anytime at all, he is not being totally just at that time. How is it that mercy and justice can co-exist without one canceling out the other completely?
The Christian faith is chocked full of quandaries like this. Christians are usually completely content to simply say that God is perfect in all of these ways even though this really makes no sense at all. It seem to me that if a Christian is to take the stories that are found in the Bible to be true, that they have to admit that God is either not “all just” or that he is not “all merciful” because he cannot be both if language has any meaning.
Maybe this is one of those things where modern Christians are trying too hard to give a complete philosophical description of God yet have gone much to far in the language that they use. I am not sure if the Bible even requires the belief that God is ALL just or ALL merciful and if that is the case, then there is no problem.
I have often thought about this question but came across it again here today.