While in college at Oklahoma Baptist University, Jacob Zimmer, who lived across the hall, gave me a cassette copy of the sermon John Claypool preached at Crescent Hill Baptist Church in Louisville, KY sometime when Claypool came back to preach at an anniversary. By that time Claypool was an Episcopalian. He preached on the Parable of the Day Laborers, and it was the best sermon I had ever heard. I played it often over the years and eventually lost it when I loaned it to someone. Though I later googled that sermon and found a similar one. I've preached excerpts of it at the last two churches when that text came around in the lectionary.
This particular volume has been in my library since college. When I was still a student the pastor emeritus of my home church decided to give me his entire library. It was a great treasure to a student. Over the years many volumes from that original treasure have been culled from my library as I've grown my own, but occasionally one of those volumes will still influence my work. This particular volume I've been intending to read for at least a decade.
It is the book developed from Claypool's Lyman Beecher Lectures at Yale. I've read a few of the lectures of other preachers and even a great book talking about all the lectures and lecturers up through the mid 20th century. I finally decided to get around to reading this volume.
Claypool preached in a very confessional way that shared intimately from the minister's own life. Chapter four of this book gives the essence of this method. At the time, late 70's, this was a rather radical idea and not how most ministers preached. He writes about the shock in congregants who want the minister to present a perfect persona and don't want to hear about the ministers struggles, doubts, and suffering.
This turn was important for preaching, though since the 1970's this method has gone to its own extreme and one hears sermons that are more about the pastor and his/her family than about God, scripture, or theology. I have my confessional moments, but it is not the dominate mode in my preaching. And now many who write on preaching really caution about sharing too many personal stories.
Outside of that chapter, much of the rest of the material was not all that interesting to me. It was very Southern Baptist -- he writes that the goal of preaching is to reconnect (notice the "re") people to God by sharing of our experience of grace. I wonder what Claypool would have lectured years later when he had switched denominations?
There is much reliance on developmental views current at the time, and many anecdotes that are corny and dated. In the Introduction he writes of his spiritual experience while preparing the lectures, but the story left me unmoved. He writes that the question that has dominated him throughout his life is "In the drama of everyday events, what does God do and what do we humans do?" That has not been a question that has particularly troubled or interested me.
So, I would not recommend this work on preaching. The best book on preaching I've read is Fred Craddock's book simply entitled Preaching.