The dictionary says a fool is someone who lacks understanding. It is true that only a fool would say that there is no God.
When we believe there is no God is we have undoubtedly been seduced by
the trappings of intellect and the physical realm. If we look to the
world for strength, purpose, and support, we can be tricked into
believing that there is no higher power. Unfortunately, when we succumb
to these ideas our thoughts and deeds are all corrupt because we believe
them to be of our own doing and for our own exaltation. The intention with which we act is erroneous and the results can be nothing less.