Excellent little lecture on the importance of simplicity (also, perspicuity) in Preaching.
Four prefatory remarks: 1) simplicity is of utmost importance, 2) simplicity is not easy, 3) simplicity is not childish, 4) simplicity is not vulgar/unrefined.
Five key points: 1) have a clear view of the subject, 2) use simple, common, everyday words, 3) maintain simple - even proverbial - composition, 4) be direct (you and I), 5) use illustrations and stories
Key application - “you will never attain simplicity in preaching without plenty of trouble.”