2 Corinthians 4:4 (NIV)
 The god of this age has blinded the minds of unbelievers, so that they cannot see the light of the gospel of the glory of Christ, who is the image of God.
He never tells the heavy drinker, “Tomorrow morning there’ll be a hangover. Ultimately, you’ll ruin your family.”
He never tells the drug user early on, “This is the beginning of a long, sorrowful, dead-end road.”
He never tells the thief, “You’re going to get caught, friend. You do this, and you’ll wind up behind bars.”
He certainly doesn’t warn the adulterer, “You know, pregnancy is a real possibility.” Or, “You could get a life-threatening disease.”
Are you kidding? Face it, when the sin is done and all the penalties of that sin come due, the devil is nowhere to be found. He smiles as you fall . . . but he leaves you with no encouragement when the consequences kick in.
2 Corinthians 2:11 (NIV)
 in order that Satan might not outwit us. For we are not unaware of his schemes.