David Murray says they are the following (specifically for new preachers):
1. Cramming: Squeezing all you have ever studied about the Bible over the years into 30 minutes.
2. Skimming: Taking too many verses and simply skimming over the surface of the text, teaching nothing that someone with average intelligence would not have derived from the text themselves.
3. Floating: The preacher says many things that relate to the text, floating or hovering above the text, but fails to show how they are anchored in the text.
4. Proof-texting: Including lots and lots of texts from all over the Bible, and sometimes diverting hearers by expounding the proof texts as much as the sermon text.
5. Quoting: Too many quotes from commentators, theologians, and other preachers from the past and the present.
6. Lecturing: It’s difficult to define the difference between preaching and lecturing, but you know it when you see it/hear it. It’s about passion, eye-contact, persuasion, urgency, etc.
7. Assuming: Our own over-familiarity with the text results in us assuming that our hearers know the background of the text, the meaning of basic key words and concepts, etc. May also result in Mach 7 preaching speeds. And don’t assume your hearers are all converted either.
8. Confusing: Hearers are left confused usually because of a lack of structure or too complicated a structure (main points, sub-points, etc.); or sometimes there is a good structure, but it’s not sufficiently highlighted and emphasized so that hearers know where they’ve been, where they are, and where they are going.
9. Spraying: Lots and lots of data, but no single dominant thought; it’s the difference between a shotgun and a rifle.
10. Complicating: Instead of explaining the text, a preacher can actually make it more obscure. Usually involves words too big, sentences too long, concepts too abstract, language too philosophical/theological.