What Demons Do (And Why It Matters for Your Monday)
When we talk about spiritual growth, we usually think Bible reading, prayer, church, maybe Christian books or podcasts. We don’t usually think demons.
But if we take Jesus seriously, we have to take the spiritual realm seriously too.
In Luke 4:31–37, Jesus is teaching in the synagogue when a man with a demonic spirit starts shouting at Him. Jesus rebukes the demon, commands it to leave, and it does. The people are stunned:
“What is this message? For he commands the unclean spirits with authority and power, and they come out.” (Luke 4:36)
This scene pulls back the curtain on a reality we don’t always see, but deeply affects us: there is an unseen war going on, and demons are part of it.
The goal isn’t to become obsessed with demons or to blame them for everything—but to be aware, biblically balanced, and anchored in the victory of Jesus.
Let’s look at four simple truths:
1. Demons Do Exist
Luke doesn’t pause to explain where demons came from. He just says:
“In the synagogue there was a man with an unclean demonic spirit…” (Luke 4:33)
In other words, in the Bible’s worldview, demons are real. Scripture teaches that Satan rebelled against God and a third of the angels followed him. Those fallen angels are what we call demons—spiritual beings opposed to God and His purposes.
Why does that matter?
Because:
You cannot confront what you won’t acknowledge.
If we think everything is purely human, purely political, purely psychological, we will try to fight spiritual battles with non-spiritual weapons. Paul reminds us:
“We are not fighting against flesh and blood, but against… the unseen world…” (Ephesians 6:12)
Demons are real. They are active. But they are not ultimate—and they are not equal to Jesus.
This Week:
- Ask God to grow your awareness of spiritual realities without fear or obsession.
- When you see evil, deception, or persistent opposition to God’s ways, remember: “There’s more going on here than meets the eye.”
2. Demons Do Work
Demons aren’t spiritual couch-potatoes. They are purposeful.
The name Satan means adversary—one who resists. That’s the job description of demons too:
Demons exist to resist the work of God.
Their mission is simple:
- Keep people from what Jesus did for them (salvation).
- And, if someone is already saved, keep them from what Jesus wants to do through them (fruitful ministry).
And here’s the tricky part: they don’t usually show up with red horns and a pitchfork.
Scripture says Satan “masquerades as an angel of light” and his servants as “servants of righteousness” (2 Corinthians 11:14–15). That means they often work through things that look good, normal, even religious.
- They don’t care if you pour your life into ending world hunger… as long as you never turn to Jesus.
- They don’t care if you become a successful provider… as long as you never submit your life to Christ.
- They don’t care if you are extremely “spiritual”… as long as it’s spirituality apart from the cross.
Demons will gladly let you sell your life out for good things, if it keeps you from the best thing—Jesus.
Even in the church, they love to distract believers with:
- Pet arguments and theological fights
- Worship style wars
- Hurt feelings, grudges, and divisions
- Secondary issues elevated above the gospel
If they can’t unsave you, they’ll try to neutralize you.
This Week:
- Ask honestly: “What good thing might be distracting me from the best thing?”
- Is there a cause, a hobby, a preference, or even a church issue that gets more of your energy than Jesus Himself?
- Pray: “Lord, don’t let me be distracted from what You’ve done for me—and what You want to do through me.”
3. Demons Do Believe
This might be the most sobering part of the story.
When the demon speaks to Jesus, it says:
“I know who you are—the Holy One of God.” (Luke 4:34)
Let that sink in.
- Demons believe God exists.
- Demons believe Jesus is the Holy One.
- Demons believe He has the power to destroy them.
They have better theology than many people… and they are still completely lost.
James says it bluntly:
“You believe that God is one; you do well. Even the demons believe—and shudder!” (James 2:19)
Belief about Jesus is not the same as surrender to Jesus.
- You can believe Jesus is real.
- You can believe He died on a cross.
- You can believe He rose from the dead.
- You can even feel emotional about it.
…and still be resisting His lordship over your life.
Demons prove that intellectual belief is not saving faith.
Saving faith is repent and believe—trusting Jesus and turning to Him as Lord, the actual boss of your life. It’s not perfection, but a new direction: a heart posture that says, “I belong to You now. I’m done being my own master.”
This Week:
- Don’t just ask, “Do I believe in Jesus?”
Ask, “Have I surrendered to Jesus?” - Look at the pattern of your life: is there a growing desire to obey Him, even when it’s hard?
- If you realize your faith has only ever been in your head, talk to God honestly: “Lord, I don’t just want to believe about You—I want to belong to You. I surrender my life to You today.”
4. Demons Do Lose
This is where the story ends—and where our hope explodes.
Jesus doesn’t bargain with the demon.
He doesn’t wrestle.
He doesn’t struggle.
He simply rebukes it:
“Be silent, and come out of him!” (Luke 4:35)
And it does.
The people are amazed:
“He commands the unclean spirits with authority and power, and they come out.” (Luke 4:36)
That’s the Jesus you belong to if you’re in Christ.
- Demons are real—but defeated.
- Satan is active—but on a leash.
- The outcome is not in doubt.
The devil cannot control what Jesus commands.
Our authority over darkness is not in our personality, our volume, or our spiritual résumé. It’s only in His name.
“Thanks be to God, who gives us the victory through our Lord Jesus Christ.” (1 Corinthians 15:57)
This Week:
- When you feel attacked, oppressed, tempted, or overwhelmed, don’t fight in your own strength. Pray: “In the name of Jesus, I submit to God and resist the enemy. Jesus, You are Lord over this situation.”
- Memorize a “war verse” (like James 4:7, Ephesians 6:10–11, or 1 John 4:4) and speak it out loud when fear, temptation, or accusation comes.
A Final Heart Check
The sermon ended with one simple question, and it’s the right place to end this post too:
Not: “Do you believe in Jesus?”
But: “Have you surrendered to Jesus?”
- Are you living like His Word is your authority—or like your feelings are?
- Is your life one of ongoing repentance and trust, or constant resistance and excuse-making?
- Are you more distracted by side issues than devoted to the Savior?
Demons exist. They work. They even believe.
But in Christ, they lose.
Walk this week with eyes open to the spiritual battle—but anchored in the One who’s already won it.