Nothing. Nothing is greater than God... Nothing is more evil than the devil... The poor have Nothing... The rich need Nothing... And if you eat Nothing you'll die.
Next question:
Ready??
What always runs but never walks, often murmurs, never talks, has a bed but never sleeps, has a mouth but never eats?
I never was, am always to be. No one ever saw me, nor ever will. And yet I am the confidence of all, To live and breath on this terrestrial ball. What am I?