Beware of what is 'free'

There’s always free cheese in a mousetrap -- Old Proverb

How God speaks

"God whispers to us in our pleasures, speaks in our conscience, but shouts in our pains; it is His megaphone to rouse a deaf world."
[C.S.Lewis, The Problem of Pain (New York: Macmillan Publishing Company, 1962), 93.]