After an error you need not only to remove the causes but also to correct the error itself: after a sin you must not only, if possible, remove the temptation, you must also go back and repent the sin itself. In each case an 'undoing' is required.
C. S. LewisTry to exclude the possibility of suffering which the order of nature and the existence of free-wills involve, and you find that you have excluded life itself
C. S. LewisMeanwhile, little people like you and me, if our prayers are sometimes granted, beyond all hope and probability, had better not draw hasty conclusions to our own advantage. If we were stronger, we might be less tenderly treated. If we were braver, we might be sent, with far less help, to defend far more desperate posts in the great battle.
C. S. Lewis