Enemy-occupied territory
“Enemy-occupied territory—that is what this world is. Christianity is the story of how the rightful king has landed, you might say landed in disguise, and is calling us all to take part in a great campaign of sabotage.
When you go to church you are really listening-in to the secret wireless from our friends: that is why the enemy is so anxious to prevent us from going. He does it by playing on our conceit and laziness and intellectual snobbery.
I know someone will ask me, “Do you really mean, at this time of day, to re-introduce our old friend the devil—hoofs and horns and all?” Well, what the time of day has to do with it I do not know. And I am not particular about the hoofs and horns.”
C. S. Lewis, Mere Christianity