No smoke, no lights, just me and my guitar. Think anybody would buy that?

For your edification and sola Scriptura solidification, the following are two verses from the hymn, "We Have an All-Sufficient Word."

6
Yes, help us preach Your Word alone,
For it alone is true;
We need not clowns or luring games
To draw men unto You!

7
We have an all-sufficient Word,
God-breathed in every part;
A piercing Power to penetrate
Depraved, cold human hearts.

(Words: Kenneth A. Puls; Music: William Croft)

BONUS: Check out this video action of those less persuaded of the truth expressed in the above song, especially "Real Preachers of Genius."