Knock and it shall be opened.' But does knocking mean hammering and kicking the door like a maniac? - C. S. Lewis

People shouldn't call for demons unless they really mean what they say.

I believe, to be sure, that any man who reaches Heaven will find that what he abandoned (even in plucking out his right eye) has not been lost: that the kernel of what he was really seeking even in his most depraved wishes will be there, beyond expectation, waiting for him in 'the High Countries'.

His Omnipotence means power to do all that is intrinsically possible, not to do the intrinsically impossible. You may attribute miracles to Him, but not nonsense. This is no limit to His power. If you choose to say, ‘God can give a creature free will and at the same time withhold free will from it,’ you have not succeeded in saying anything about God: meaningless combinations of words do not suddenly acquire meaning simply because we prefix to them the two other words, 'God can.' It remains true that all things are possible with God: the intrinsic impossibilities are not things but nonentities. It is no more possible for God than for the weakest of His creatures to carry out both of two mutually exclusive alternatives; not because His power meets an obstacle, but because nonsense remains nonsense even when we talk it about God.