While there are many ways that demonic forces can oppress God’s people, this book is written to help us discover how these forces gain a foothold within our own homes. As a first step, we must understand that demons use clever disguises to keep us ignorant of their work in our lives. As Noel and Phyl Gibson write in Evicting Demonic Intruders, “Demons cover their existence by deception, so that people concentrate on what they see, or how they feel, and overlook spiritual causes.”2