Biblical references are fine in the context of religious discussion. It's when someone uses the bible (or kerrang, or whatever) as a weapon to castigate their opponents and elevate themselves above the status of ordinary humans that it becomes preaching, particulary when done so in place of discourse.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
