"Religions that preach retribution for non-belief cannot in fact lay claim to being reasonable"

When I threaten you, I automatically remove reason as an allowable means to accepting my claim. I’ve in effect determined your choice. If you were truly free to exercise reason, I would have to accept its outcome no matter what, even if I considered you gravely mistaken. Punishment for arriving at a wrong conclusion turns reason into a thought-crime.

So when believers like Christians or Muslims contend their faiths are based on reason, one may simply object that this can’t be so because their god in fact doesn’t allow it. Using reason to arrive at any other belief than the correct one will earn you an eternity in hell. Thus, reason is in reality an evil to be avoided....Blind, unquestioning, and unexamined belief is what the theist’s retributive god truly desires, not a belief grounded in reason. Link