The best argument for Christianity is Christians: their joy, their certainty, their completeness. But the strongest argument against Christianity is also Christians-when they are somber and joyless, when they are self-righteous and smug in complacent consecration, when they are narrow and repressive, then Christianity dies a thousand deaths.
Have you ever noticed how many men in the Bible failed in the second half of life? Our enemy is so cunning that he will wait forty or even fifty years to set a trap.
Impression minus expression leads to spiritual depression.