The Bible talks a lot about many things God, love, faith, sin but yes, it also talks about demons. You might wonder: Where in the Bible does it talk about demons? What do they do? Where did they come from? Are they real? And what should we do about them?
In this guide, we’ll walk through these questions together using clear and simple language. Whether you’ve read the Bible many times or are just starting out, this article will help you understand what the Bible really says about demons.
What Are Demons According to the Bible?
In the Bible, demons are evil spiritual beings. They are not just scary creatures from horror movies. The Bible describes them as fallen angels created by God, but who chose to rebel with Satan (Revelation 12:7–9).
They are not human.
They work under the leadership of Satan.
Their goal is to harm, deceive, and destroy.
Ephesians 6:12 (KJV): “For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world…”
Is the Word “Demon” in the Bible?
Yes and no. The word “demon” is used in many English translations. But in the King James Version (KJV), the word “demon” is not directly used it uses terms like “devils” or “unclean spirits.”
So while the word changes, the meaning stays the same.
What does the Bible say about demons KJV?
Answer: In the KJV, demons are often called “devils” or “unclean spirits.”
Where In the Bible Does It Talk About Demons?
The Bible talks about demons in both the Old Testament and the New Testament, but most of the detailed stories are found in the New Testament.
Let’s break it down:
Old Testament References to Demons
Leviticus 17:7 (KJV) – Talks about people sacrificing to “devils.”
Deuteronomy 32:17 – Mentions people sacrificing to demons, which were not God.
1 Samuel 16:14 – Speaks of an “evil spirit from the Lord” tormenting King Saul. While not called a demon, it’s a spiritual being bringing distress.
These passages don’t give many details, but they show that people in ancient times believed in evil spirits and were warned against them.
New Testament References to Demons
The New Testament is where demons appear more clearly.
| Bible Book | What It Says About Demons |
|---|---|
| Matthew | Jesus casts out many demons (Matthew 8:16, 17:18). |
| Mark | Jesus sends demons into pigs (Mark 5:1–13). |
| Luke | Mary Magdalene had seven demons (Luke 8:2). |
| Acts | Paul casts out a spirit from a girl (Acts 16:16–18). |
| James | “Even the demons believe and tremble” (James 2:19). |
| Revelation | Demons play a role in end-time deception (Revelation 16:14). |
Which book of the Bible talks about demons?
Answer: Several, but Mark, Matthew, and Luke have the most direct stories of Jesus dealing with demons.
Who Had Demons in the Bible?
The Bible mentions several people who were possessed or troubled by demons. These people weren’t evil themselves they were suffering and needed help.
Examples:
Mary Magdalene – Freed from seven demons (Luke 8:2).
Boy with seizures – Jesus healed a boy tormented by a demon that made him fall into fire and water (Matthew 17:14–18).
Gerasene man – Lived in tombs, had many demons called “Legion” (Mark 5:1–13).
Jesus showed great mercy to all of them.
Who had demons in the Bible?
Answer: Mary Magdalene, the demon-possessed boy, and the Gerasene man are a few.
What Does the Bible Say About the Appearance of Demons?
The Bible doesn’t give exact descriptions of how demons look. It’s not like a scary movie where they have horns or red eyes. Most of the time, demons are spiritual, invisible, and only their effects are seen like sickness, torment, or strange behavior.
However, the Bible does warn that they can pretend to be good:
2 Corinthians 11:14 (KJV) – “Satan himself is transformed into an angel of light.”
So demons might not always appear “scary.” Sometimes, deception is their greatest weapon.
What does the Bible say about demons’ appearance?
Answer: The Bible doesn’t describe how they look but warns they can deceive.
Bible Verses About Demons Trembling
One of the most striking verses is this:
James 2:19 (KJV) – “Thou believest that there is one God; thou doest well: the devils also believe, and tremble.”
This verse shows us that belief in God is not enough. Even demons believe and they are terrified of God’s power.
Bible verse about demons trembling?
Answer: James 2:19 is the clearest verse.
Do Demons Still Exist According to the Bible?
The Bible doesn’t say that demons only existed in the past. In fact, many verses point to the idea that they are still active in the world today.
1 Peter 5:8 (KJV) – “Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about…”
This verse is present-tense. It’s not just history—it’s warning us now.
So yes, according to the Bible, demons still exist and are trying to influence people today.
Do demons still exist according to the Bible?
Answer: Yes. The Bible warns believers to stay alert because demons still try to deceive and destroy.
How Many Times Are Demons Mentioned in the Bible?
While the exact count depends on the translation:
In the KJV, the word “devils” is used over 60 times.
The term “unclean spirit” appears around 20 times.
“Demon” appears in modern translations like the ESV or NIV, usually 50–60 times.
So, demons are a recurring theme, especially in Jesus’ ministry.
How many times are demons mentioned in the Bible?
Answer: Around 50–80 times depending on the translation.
Names of Demons in the Bible
The Bible rarely gives demons personal names, but here are a few mentioned:
Legion – A group of demons (Mark 5:9)
Beelzebub – Called the prince of demons (Matthew 12:24)
Apollyon/Abaddon – A destroyer spirit in Revelation 9:11
The Bible doesn’t give a full “list of demon names,” and that’s likely for a reason—it focuses more on God’s power than on naming evil spirits.
Names of demons in the Bible KJV
Answer: Legion, Beelzebub, and Abaddon are the most known.
Bible Verses to Cast Out Demons
Jesus gave His followers the power to deal with demons. Here are a few key verses:
Mark 16:17 (KJV) – “In my name shall they cast out devils…”
Luke 10:17–20 – Disciples return saying, “Even the devils are subject unto us…”
Acts 16:18 – Paul casts out a spirit from a girl “in the name of Jesus Christ.”
The power to fight against demons is not in us, but in Jesus’ name.
Bible verses to cast out demons
Answer: Mark 16:17, Luke 10:17, Acts 16:18
Final Thoughts: Why This Matters
Understanding what the Bible says about demons isn’t just for curiosity. It’s about knowing how to stand strong in your faith.
Yes, the Bible talks about demons. But it talks much more about God’s power, Jesus’ authority, and how we can live in freedom.
Remember:
Demons are real, but God is greater.
You don’t need to live in fear—you can walk in truth.
1 John 4:4 (KJV) – “Greater is he that is in you, than he that is in the world.”
Quick Recap
| Question | Answer |
|---|---|
| Does the Bible talk about demons? | Yes, in both Old and New Testaments. |
| Which book of the Bible talks about demons? | Matthew, Mark, Luke, Acts, Revelation, and others. |
| Do demons still exist according to the Bible? | Yes, and believers are warned to be watchful. |
| Who had demons in the Bible? | Mary Magdalene, the Gerasene man, and others. |
| What does the Bible say about demons KJV? | Calls them “devils” and “unclean spirits.” |
| Names of demons in the Bible KJV? | Legion, Beelzebub, and Abaddon. |
| Bible verses to cast out demons? | Mark 16:17, Luke 10:17, Acts 16:18. |
| What does the Bible say about demons’ appearance? | Not much; warns of deception. |
| Bible verse about demons trembling? | James 2:19 |
Conclusion
So, where in the Bible does it talk about demons? The answer is: all throughout. But more than that, the Bible shows us how to face the unseen with faith, not fear.
Demons may be real, but Jesus Christ is more powerful. And in Him, you can stand firm, full of peace and hope.
Reverend James, a seasoned and knowledgeable author, excels in presenting profound biblical teachings with clarity and simplicity, making Scripture accessible and engaging for all
