Joe Stowell, in a session on preaching, listed four power dynamics that are critical for preaching transformationally, that is, preaching for changed lives. Nothing new here, but a helpful reminder for us all:
1. The Preacher’s Life – This is number one for a reason. Consider the true value of our integrity, our walk with Christ, our willingness to apologize when necessary (and periodically it is for we all fail).
2. The Text – Do we need any comment here? After all, this site is about Biblical preaching!
3. The Context – Not the hermeneutical overarching principle for Bible study, but the context in which you preach. Stowell pointed out that no church would continue to finance a missionary who refused to consider issues of culture, language, etc. Yet many preachers allow themselves the same nonsensical freedom when it comes to the ministry in the pulpit!
4. Clarity – If the feedback stated is “Wow, that was deep!” then the message should be translated as “I didn’t get what you were talking about!” Be clear.
Simple stuff, but I’m sure I’m not the only one who needs these reminders.
Biblical Preaching 
What great points. I have not seen them before. Thanks for posting them. I truly appreciate point four;
1) because I have said that to a preacher myself and
2) because I have had someone say that to me after a sermon.
Oh to be reminded of our short-comings.