Despite no recorded exorcisms, John’s gospel reverberates with spiritual warfare imagery. Tensions fill the book: light and darkness, life and death, community and isolation, truth and lies. Ruling over the realm of darkness and deceiving the world is the devil—the Father of lies. Not only does Jesus expose the devil in John’s gospel but also overthrows him through his life, death, and resurrection. Similar themes resurface in John’s letters. The devil rules the world, captivates sinners, and deceives believers.