The basic theme of all of the prophets, and ultimately Jesus Christ himself was "Repent! The Kingdom of God is at hand," or, "Believe the Good News!" This is simple in your face Christianity. No serpentine semantics here, just pure old fashion truth. There is sin and there is grace; there is God and there is Satan; good and evil, truth and lies, life and death. Get on the right path. Just do it! Simple things taught simply.
From the popular "Lenten Retreat" series.