Read this article on why preachers should read.
Why should preachers read? Diction. Word choice, word organization, the felicitous phrase, the well-tuned ear. Preachers need to know how this sentence will sound when spoken, not just to an empty room, or to a mirror, or a window, but into a microphone, amplified, to an audience.
It seems to me that more folks need the skill of diction than preachers. Anyone who wants to make an argument aloud, sell something, or prove a point needs to know which words to use and when to stop talking. Maybe lawyers should read more. And car dealers. Teachers. Politicians. Need I continue?
You’ll communicate better.