For I decided to know nothing among you except Jesus Christ and him crucified. (1 Cor 2.2 ESV)I have long held that one of the most important things a pastor can do is remind his congregation of what they already know. Due to our human frailties we constantly need to be reminded lest our harried and disjointed lives help us forget what is really important.
As New Testament evangelical scholar (and one of my favorites) D. A. Carson put it during a lecture on the book of Revelation and the genre of apocalyptic literature:
I sometimes tell my students that if I have learned anything in 35 odd years of teaching, I have learned that my students don't learn most of what I teach them. What they tend to learn is what I'm excited about. What they tend to learn is what I keep repeating. What they tend to learn is what I place at the organizational center, that is, so that everything gets related back to it.Get excited about the cross, the now-empty tomb and the throne that Christ sits upon in heaven. Emphasize his offices of Prophet, Priest and King. Don't let your people forget them.