Eternal damnation for sincere nonbelief is difficult to reconcile with a universal and perfectly just God
This argument is aimed specifically at forms of religious exclusivism where a person’s eternal fate depends on accepting a particular revelation, prophet, or set of historical religious claims.
I’m not talking about someone who has never encountered the religion. Imagine someone who genuinely seeks God, seriously investigates the relevant claims in good faith, and still remains unconvinced.
A person can choose whether to investigate honestly. They cannot simply choose what evidence ultimately convinces them.
Two equally sincere people can therefore examine the same competing claims and reach different conclusions.
If God is omniscient, He knows whether each person was sincere. If God is perfectly just, it is difficult to see why their eternal fate should depend on which historical revelation they ultimately became convinced was true.
Eternal punishment makes the problem stronger. Human life is finite; eternity is not. An endless punishment for conclusions reached during a finite lifetime raises a serious proportionality problem especially when the “error” was sincere nonbelief rather than knowingly rejecting something the person believed to be true.
This is not an argument that every religion is equally true, that contradictory doctrines can all be correct, or that religions cannot make exclusive truth claims.
My thesis is much narrow:
A universal and perfectly just God is difficult to reconcile with a system in which sincere failure to become convinced of the correct historical revelation can result in eternal punishment.