Darrell Johnson says this in The Glory of Preaching: Participating in God’s Transformation of the World
Something always happens.
Whenever a human being, Bible in hand, stands up before a group of other human beings, invites the gathered assembly into a particular text of the Bible and as faithfully as possible tries to say again what the living God is saying in the text, something always happens. Something transformative, empowering, life-giving happens…
I believe the preaching of the Word of God changes the world. I believe individuals, neighborhoods, cities and nations are changed by the preaching of the gospel of Jesus Christ.