Sunday we discussed spiritual warfare, angels, demons and Satan. Given our time constraints, I could only touch on the subject briefly. If you have further questions, I would suggest the following resources. I found them very beneficial.
Jesus and Demons - Sermon by Pastor Mark Driscoll, Mars Hill Church, Seattle
Spiritual Warfare - A four hour, in depth teaching session by Pastor Mark Driscoll
Spiritual Warfare lecture notes by Pastor Mark Driscoll
Go to the bottom, middle box and click on the "Downloads" tab. On that tab, look under "Additional Downloads" and click on "Download the Lecture Notes."
Secret Church: Spiritual Warfare by Pastor David Platt, The Church at Brook Hills, Birmingham, AL