What was the secret to the success of preachers such as Charles Spurgeon, John Wesley, George Whitefield and others that God has used down through the ages? That is the foundational teaching for the entire series.
The reason a sinner responds to the gospel determines whether he continues in his faith. This is a vital teaching. Multitudes are being inoculated to the true gospel, because of a lack of understanding when it comes to this principle.
Be challenged by a fictitious but powerful analogy called "The Firefighter." Join Kirk Cameron as he gives a running commentary (using hidden cameras) while Ray Comfort shares his faith with strangers.