Wind you cannot see · breath that gives life · spirit that lives
Both רוּחַ and πνεῦμα cover the same arc of meaning, and the Bible moves freely along it. The wind blows where it wishes (John 3:8); God forms man and breathes into him the breath of life (Gen 2:7); and the word stretches all the way to the living spirit-beings of heaven and the unclean spirits cast out by Christ. To study πνεῦμα is to follow one thread from the first page of Genesis to the last of Revelation.
the Spirit of GodGen 1:2 — the Holy Spirit Himself
The spirits are created beings
God created the spirits — the Scriptures say so plainly
The invisible, spirit-world is not eternal alongside God and not self-existing; it was made by Him, through Christ, and for Christ. The texts are explicit. Some of those created spirits later fell — and even those remain creatures, never rivals.
By Him all things were created, in heaven and on earth, visible and invisible — whether thrones or dominions, rulers or authorities. All things were created through Him and for Him.
The decisive verse. The "invisible" things — including the spiritual ranks of thrones, dominions, rulers, authorities — were created through Christ and for Christ. Every spirit-being has its origin in the Son.
He makes His angels spirits, His ministers a flame of fire.
God makes His angels spirits — they are formed by Him. Hebrews 1:7 quotes this of the angels precisely to show their created, serving rank, far below the Son.
You alone are the LORD. You made the heavens … and all their host … and the host of heaven worships You.
The "host of heaven" — the angelic armies — are made, and they worship. A creature cannot be a co-eternal power; it can only bow. Heb 1:14 calls them "ministering spirits sent to serve."
② Fallen — created good, then rebelled (the dark kingdom is a counterfeit, not a creation)
The angels who did not keep their proper domain, but left their own abode, He has kept in chains under darkness.
These rebel angels are real, fallen spirits — wicked by rebellion, not by manufacture. 2 Peter 2:4: "God did not spare the angels who sinned." Whether these ranked, fallen angels are the very same beings as the "demons" Christ casts out of people is taken up in the distinction below.
The great dragon was cast out … and his angels were cast out with him.
Satan and "his angels" — a company of fallen spirits. 12:4 pictures a third of the stars swept down: a real, finite host, already cast out and destined for judgment (Matt 25:41).
He was a murderer from the beginning and does not stand in the truth … he is a liar and the father of it.
"Does not stand in the truth" implies he once did and fell from it. The devil's nature now is murder and lie — but it is a corrupted creaturely nature, not an eternal one.
A finer distinction · held loosely
Are the fallen angels the same as the demons?
It is clear that fallen angels are evil spirits. It is less clear that they are the same as the demons — the unclean spirits that crave a human body. Scripture distinguishes a ranked, organized dark kingdom from the body-seeking spirits Jesus casts out, and many hold these to be two different things. The texts below mark the difference; the note that follows holds the theory with an open hand.
archas … exousias … kosmokratoras tou skotous tou aiōnos toutou
…against principalities, against powers, against the world-rulers of this darkness, against spiritual hosts of wickedness in the heavenly places.
Paul names ranks — principalities, powers, world-rulers, hosts. This looks like an ordered dark kingdom that mirrors and counterfeits the ranks of God's own (Col 1:16). The fallen angels most likely belong here: a structured rebellion in the heavenly places, not the spirits clawing to get into a body.
And they begged Him that He would not command them to go out into the abyss … "Let us enter the swine."
The demons dread being disembodied ("the abyss") and beg for any body — even pigs. The unclean spirit calls a person "my house" and roams "waterless places seeking rest" (Matt 12:43). This is a different creature than a ranked angel: a spirit whose driving hunger is to inhabit and act through flesh.
Where do demons come from? We hold a theory loosely
Scripture never states it outright, so we do not insist. But the body-craving behavior fits an old reading of Genesis 6: the "sons of God" took human wives and produced the Nephilim — hybrid offspring later destroyed in the flood (Gen 6:1–4). On this view the fallen angels became the principalities of Ephesians 6, while the demons are the disembodied spirits of those dead Nephilim — beings who once had bodies, lived in the lusts of the flesh, and now crave a body again so they can work their desires through a host.
The intertestamental Book of Enoch develops exactly this — that these beings taught humanity sorcery, charms, and witchcraft, and that the spirits of the giants became the evil spirits that trouble the earth. Enoch is not canonical Scripture, though Jude (vv. 6, 14–15) clearly knows the tradition. So we treat the origin as a held-loosely theory drawn from Genesis 6, 2 Peter 2:4, and Jude — not a doctrine to divide over.
The one thing we hold tightly is not their pedigree but our orders: ἐκβάλλω — cast them out. We do not need to know where a demon came from to know it has to go.
The sovereignty of God over every spirit
How the Lord uses spirits for His purposes
The Bible never shows two equal powers at war. It shows one God who creates, commissions, restrains, and even commandeers spirits — good and evil alike — to accomplish His will and to drive people to Himself. Seven movements trace it.
I
By His Spirit He creates and gives life
The first work of the רוּחַ is to bring the dead and formless to life.
And the Spirit of God was hovering over the face of the waters.
Before a word of light, the Spirit broods over the chaos. Genesis 2:7 — God breathes the breath of life and man becomes a living being; Job 33:4 — "the Spirit of God has made me." Life is a gift of the divine breath.
II
By His Spirit He empowers His servants
The Spirit comes upon judges, kings, craftsmen and prophets for the work.
The Spirit of the LORD came upon David from that day forward.
The same pattern fills Bezalel for craftsmanship (Exod 31:3), Gideon for war (Judg 6:34), and rests sevenfold on the Messiah (Isa 11:2). The Spirit equips for God's assignments.
III
He sends a distressing spirit as discipline
When a king persists in rebellion, God may withdraw His Spirit and permit another.
The Spirit of the LORD departed from Saul, and a distressing spirit from the LORD troubled him.
Note the order: the Spirit departs, then the distressing spirit comes — "from the LORD," yet relieved by David's worship (16:23). God uses it as discipline on a hardened king. Compare Judges 9:23, the spirit of ill will God sent against Abimelech.
IV
He permits a lying spirit to judge the hardened
Those who refuse the truth may be given over to the lie they prefer.
"I will go out and be a lying spirit in the mouth of all his prophets." … "You shall persuade him; go and do so."
A spirit volunteers; the LORD permits it to lure Ahab to the death he has chosen. God does not lie, but He can hand the willing rebel over to deception (cf. 2 Thess 2:11). The spirit is an instrument, never a partner.
V
He keeps the enemy on a leash
Satan himself can move only by permission, and only so far.
"Behold, all that he has is in your power; only do not lay a hand on his person."
The accuser must ask, and is fenced by an "only." Jesus tells Peter, "Satan has asked for you, to sift you — but I have prayed for you" (Luke 22:31–32). The enemy operates inside boundaries God sets and Christ's intercession holds.
VI
He uses the buffeting to humble and to save
Even a messenger of Satan can be turned to a servant's good.
ἐδόθη μοι σκόλοψ τῇ σαρκί, ἄγγελος σατανᾶ, ἵνα με κολαφίζῃ
angelos satana, hina me kolaphizē
A thorn in the flesh was given me, a messenger of Satan to buffet me, lest I be exalted above measure.
A satanic messenger — yet "given" to keep Paul humble, and the doorway to grace and power (12:9). So too 1 Cor 5:5 and 1 Tim 1:20: a person is "delivered to Satan" so that the spirit may be saved and he may learn not to blaspheme. Discipline aimed at rescue.
VII
He turns all of it to draw people to Himself
The sovereign aim under every spirit is repentance, salvation, and His glory.
I will pour on the house of David the Spirit of grace and supplication; they will look on Me whom they pierced and mourn.
The end God is always working toward: hearts turned home. Genesis 50:20 states the principle over all of it — "you meant evil, but God meant it for good" — and Romans 8:28 makes it the believer's confidence. Even the dark serves the harvest.
The spirits, called by name
Every spirit the Bible names — and what it was doing
Scripture rarely gives demons personal names; instead it names them by their work or their effect — "a spirit of infirmity," "a lying spirit," "a mute spirit." Below, gathered by kind, with a short note on what the text shows each one doing. Read the discernment note that follows: not every "spirit of…" is a demon to be expelled.
A · Spirits the Lord sent or permitted for His purposes
Designations of the Holy Spirit in His operations — see the companion guide on the Holy Spirit.
Discernment matters here (see Note ② below): some "spirit of…" phrases name a demon, some name a human disposition, and some name the Holy Spirit Himself. They are not all things to be "cast out."
The shadow · what the unclean spirit is after
Its mission is to enter, to hold, and to destroy
Where God's Spirit gives life, the unclean spirit seeks a "house" to occupy and a life to ruin. Knowing its aim is the reason the next step is not negotiation but expulsion.
"I will return to my house from which I came" … it brings seven other spirits more wicked, and the last state is worse.
The unclean spirit treats a person as a dwelling to reclaim. An empty, un-filled life is vulnerable — which is why deliverance must be followed by being filled with the Holy Spirit.
The thief comes only to steal and to kill and to destroy; I have come that they may have life.
The enemy "prowls like a roaring lion, seeking someone to devour" (1 Pet 5:8). Against that, Christ sets life — and the authority to drive the destroyer out.
The close · our standing orders
And so we are mandated by Christ to cast them out
The study does not end in fear or fascination. It ends in a command. The same Lord who rules every spirit handed His authority to His people and told them to use it — the very verb of the companion study, ἐκβάλλω, "to thrust out."
Mark 16:17 — "In My name they will cast out demons." Matt 10:8 — "Cast out demons; freely you received, freely give." Luke 10:19 — "I give you authority … over all the power of the enemy." Jas 4:7 — "Submit to God. Resist the devil, and he will flee."
One question remains for those who do this work among God's own people: can a believer be troubled by such a spirit — and what then? That is taken up in the companion guide, "Demons & the Believer." Its answer is short and full of hope: a child of God can never be owned, but can be oppressed — and the remedy is simply to cast it out and be free.
For the careful reader
Two things worth holding onto
① One word: wind, breath, spirit
Because רוּחַ and πνεῦμα mean wind, breath, and spirit, context decides which is meant. In John 3:8 Jesus puns on it: "the wind (pneuma) blows where it wishes … so is everyone born of the Spirit (pneuma)." The invisible, sovereign movement of wind becomes a picture of the Spirit's work — unseen, free, and life-giving.
② Test the spirits — not every "spirit of…" is a demon
Scripture itself uses "spirit of…" three ways: for a demon (spirit of infirmity), for a human disposition (haughty spirit, broken spirit), and for the Holy Spirit (spirit of wisdom, of adoption). Sound ministry discerns which is which rather than treating every phrase as an entity to expel. "Do not believe every spirit, but test the spirits, whether they are of God" (1 John 4:1).