Demons in the Bible: What Scripture Actually Teaches
Curated insights from They Shall Expel Demons by Derek Prince
The Bible presents demons as real, personal evil spirits, distinct from Satan himself, that can afflict or influence people but remain subject to the authority of Jesus Christ. Scripture calls them demons, unclean spirits, and evil spirits, repeatedly shows Jesus casting them out, and never grants them power that His name cannot overcome.
Much of the confusion around this subject comes from translation and folklore, not from the biblical text. Derek Prince spent decades sorting the two.
The biblical setting
The Gospels introduce the theme early and matter-of-factly. In the synagogue at Capernaum, Jesus encountered a man under the influence of an unclean spirit, and with a single command He told it to be silent and come out. The crowd was astonished that “He commands even the unclean spirits, and they obey Him” (Mark 1:27 NKJV). Author of They Shall Expel Demons Derek Prince observes that Jesus was in no way embarrassed by the disturbance, because dealing with the demon “was part of His total ministry.”
“He became known to His fellow Jews first and foremost as the Man with unique authority over demons.” (p. 26)
That scene sets the Bible’s baseline. Demons are real, they can affect ordinary and even religious people, and the authority of Jesus over them is absolute. Everything Scripture teaches on the subject sits inside that framework of Christ’s clear supremacy.
What the Bible calls demons
Understanding demons in the Bible begins with the words Scripture uses. Prince points out that the New Testament uses three expressions interchangeably: demons, unclean spirits, and evil spirits. Luke even combines two of them, describing “a spirit of an unclean demon” (Luke 4:33 NKJV). What Scripture does not do is equate demons with the devil. As Prince puts it, “there are many demons but only one devil.” The English word “devil” comes from the Greek “diabolos,” meaning slanderer, which is a title of Satan and almost always appears in the singular. The older King James Version translated the word for demon as “devil,” which Prince notes “has led to endless confusion.”
| Biblical term | Where it appears | What it describes |
| Demon (daimonion) | Throughout the Gospels, Acts, Revelation | An individual evil spirit |
| Unclean spirit | Luke, Acts, Revelation | The same beings, emphasizing impurity |
| Evil spirit | Luke and Acts | The same beings, emphasizing malice |
What Scripture shows demons to be
The Bible treats demons as personal beings, not impersonal forces. Prince draws out five marks of personality; each grounded in a specific text:
- Will. A demon decides, “I will return to my house from which I came” (Matthew 12:44 NKJV).
- Emotion. “Even the demons believe, and tremble” (James 2:19 NKJV).
- Intellect. A demon recognized Jesus instantly: “I know who You are, the Holy One of God” (Mark 1:24 NKJV).
- Self-awareness. Asked its name, a demon answered, “My name is Legion; for we are many” (Mark 5:9 NKJV).
- Ability to speak. Throughout the Gospels and Acts, demons spoke through the people they afflicted, answering questions and carrying on conversation.
These are the characteristics of persons, which is why Scripture portrays deliverance as confronting a someone, not a something.
What Scripture does not settle
A careful reading also recognizes where the Bible stops. On the question of where demons come from, Prince lays out the two main theories he has heard, that demons are fallen angels, or that they are disembodied spirits of a pre-Adamic race, but he declines to be dogmatic: “I do not believe that Scripture provides us with sufficient evidence to say with certainty which, if either, of these theories is correct (pg.125),” He offers his own leaning from experience while admitting it is not settled doctrine. This is an important distinction for any honest treatment of the subject. Scripture clearly affirms that demons exist and that Jesus has authority over them, while leaving some of the details that fascinate us unstated.
Why “possessed” is the wrong word
One of the most useful corrections in They Shall Expel Demons concerns a single word. Prince notes that when translations say a person was “possessed,” they overstate the original text:
“Nothing in the original Greek justifies the use of the word possessed, with its suggestion of ownership. This translation is an accommodation to traditional religious terminology that obscures the meaning of the original text.” (p. 25)
The underlying verb simply means to be demonized, or to be under the influence of an evil spirit. Scripture describes a range of demonic influence rather than wholesale ownership of a person. That distinction matters, because it replaces a frightening, all-or-nothing picture with the Bible’s more measured language and keeps the focus on the deliverance Jesus freely gives.
How demons operate, and their limit
Scripture and Christian experience associate demons with certain recognizable activities, noticed the way we notice the wind—by its effects rather than by sight. Prince lists nine of the most typical:
- Entice — persuading people toward evil
- Harass — wearing a person down until they find an opening
- Torture — tormenting the body or the mind
- Compel — driving compulsive behavior
- Enslave — binding a person to a sin they hate but cannot break
- Cause addictions — fastening a craving onto a deeper, unmet need
- Defile — soiling the thoughts and imagination
- Deceive — drawing people out of sound faith into doctrinal error
- Attack the physical body — afflicting the body, including sickness
Yet the decisive biblical point is their limit. Demons are creatures, not Satan’s equals and certainly not God’s. They are earthbound creatures whose character ranges widely, from the violent and strong to the weak and even ridiculous, and they remain answerable to the authority of Christ, who “commands even the unclean spirits, and they obey Him” (Mark 1:27 NKJV). Prince is direct about the believer’s place in this: a person can be truly born again and still need deliverance, and the same new birth carries the authority to drive demons out, “either from ourselves or from others.” What Scripture states plainly is that Jesus holds complete authority, and that He shares it with His followers.
Frequently asked questions
What does the Bible say demons are?
The Bible describes demons as real, personal evil spirits that can influence or afflict people. They display marks of personality such as will, emotion, intellect, and the ability to speak, and they remain subject to the authority of Jesus.
Are demons the same as the devil?
No, the Bible distinguishes them. There are many demons but only one devil, since “devil” (diabolos, meaning slanderer) is a title of Satan, while demons are separate evil spirits.
Does the Bible say where demons come from?
Scripture does not clearly state the origin of demons. Derek Prince notes two common theories, fallen angels and disembodied spirits, but concludes that the Bible does not give enough evidence to settle the question.
Can a Christian be affected by a demon?
Further Reading
They Shall Expel Demons, part of The Essential Prayer Warrior Collection by Derek Prince (Chosen Books, 2025) is a careful, Scripture-anchored treatment of what the Bible teaches about demons and deliverance, written by a respected Bible teacher known for precise attention to the biblical text. It is for readers who want to move past folklore and fear toward a sober, grounded understanding of the subject.
This article was drafted with an AI research tool and reviewed and verified against the source manuscript by Joyce Perez, Marketing Manager.
