It is greater than God and more evil than the devil. The poor have it, the rich need it and if you eat it you'll die. What is it?

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

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?

the future