although im not religious at all, i used to be and went to catholic school for 10 years. i always thought of the bible as a book of life lessons (mixed in with some crazy ass sexism/homoeroticism/other weird shit) and shouldn't be taken literally.
if you think some dude got eaten by a whale and just chilled in his stomach for a while then came back home...holy shit.
but, there are those extremists out there who think 1 guy ate an apple because his girlfriend persuaded him to after being convinced it was a good idea by a talking snake and doomed all of humanity. they won't be convinced the earth isn't 2000 years old, so why bother. let them be comforted by their intentional ignorance if that's how they choose to get through life; no point in wasting time on them.