Do not be deceived, God is not mocked; for whatever a man sows, that he will also reap.—Galatians 6:7
Sin, I repeat, in addition to anything else it may be, is always an act of wrong judgment. To commit a sin a man must for the moment believe that things are different from what they really are; he must confound values; he must see the moral universe out of focus; he must accept a lie as truth and see truth as a lie; he must ignore the signs on the highway and drive with his eyes shut; he must act as if he had no soul, and was not accountable for his moral choices.
Sin is never a thing to be proud of. No act is wise that ignores remote consequences, and sin always does. Sin sees only today, or at most tomorrow; never the day after tomorrow, next month or next year. Death and judgment are pushed aside as if they did not exist and the sinner becomes for the time a practical atheist who by his act denies not only the existence of God but the concept of life after death....
The notion that the careless sinner is the smart fellow and the serious-minded Christian, though well-intentioned, is a stupid dolt altogether out of touch with life will not stand up under scrutiny. Sin is basically an act of moral folly, and the greater the folly the greater the fool. Man: The Dwelling Place of God, 47-48.
"Keep me from sin today. To sin is indeed so foolish, and yet the tendency is so strong! Deliver me from 'moral folly,' again in the power of Your Holy Spirit. Amen."