Sermon: What Does the Bible Say about Demons? (Selected Scriptures). Given the rise in interest in spiritual realms, it is not surprising that people believe in demons and the demonic. However, they also fail to understand what the Bible teaches about demons, leading to all sorts of problems. In this sermon find out what the Bible really says about demons so that you can understand what they do, what their goals are, and how to combat them biblically. This sermon is the final message in our 2016 Winter Theology Series on Angels, Satan, and Demons.