The Order of Eternal Flame was a great order of the past, dedicated to bringing law and justice to The Lands. The Dragon Knights brought a golden age to the Elder Times. Unfortunately, they were betrayed and that golden age has been lost.
Atheists and agnostics get a jolt when one or more deities make an appearance, and take a direct interest in things. It is hard to deny the existence of gods when one has met them face to face.