Mere Christianity in The Complete C. S. Lewis Signature Classics

p. 24

Lewis muses over what plenty of people have mused over—the possible existence of God.  “If there does exist an absolute goodness it must hate most of what we do.  This is the terrible fix we are in.  If the universe is not governed by an absolute goodness, then all our [moral] efforts are in the long run hopeless.  But if it is, then we are making ourselves enemies to that goodness every day, and are not in the least likely to do any better tomorrow, and so our case is hopeless again. . . God is the only comfort; he is also the supreme terror: the thing we most need and the thing we most want to hide from.  Some people talk as if meeting the gaze of absolute goodness would be fun.  They need to think again.  They are still only playing with religion.  Goodness is either the great safety or the great danger—according to the way you react to it.  And we have reacted the wrong way.”