convince themselves? Judging by some of the questions here, it seems that many people who profess to believe in God are actually rather insecure in their faith, and seem more concerned with convincing themselves that their own beliefs are true.

For instance, the underlying memes that "Atheists must secretly believe in God"; the repeated attempts to make tenuous, post-hoc links between scripture and the scientific consensus; and the absurdly fallacious attacks in an attempt to deny demonstrable facts of evolution (like "finches already hatching with the right shaped beaks after the environment changed suddenly on one of the islands" -- yes, because each clutch of eggs contains babies with a variety of beak shapes and sizes, and the ones that don't fit the new environment simply die off).