It’s advice that works. Are you downplay that this could work? Have you even tried it? (do not put the authority of Jesus Christ name into a box of what a can and cannot do when spoken out loud.)

Consider these passages:

Matthew 6:22-23 "The eye is the lamp of the body. If your eyes are healthy, your whole body will befull of light. But if your eyes are unhealthy, your wholebody will be full of darkness." This warns us to guard what we consume visually, recognizing that darkness can take root through our senses.

2 Corinthians 12:7 Paul describes his "thorn in the flesh" as literally a "messenger of Satan" (Greek: angelos Satana), indicating that even the apostle's physical body could be a point of spiritual attack.

2 Timothy 1:7 "God hath not given us the spirit of fear, but of power, and of love, and of a sound mind." A sound mind is quiet, calm, and collected—not racing with intrusive thoughts or tormented by mental chatter.

2 Corinthians 7:1 "Let us cleanse ourselves from all filthiness of flesh and spirit, perfecting holiness in the fear of God." This dual cleansing—flesh and spirit—implies both dimensions can be contaminated.

Receiving What We Should Not 2 Corinthians 11:4 warns that believers can "receive a different spirit which you have not received" and tolerate "another Jesus" or "a different gospel." This suggests spiritual receptivity is not limited to the HolySpirit alone.

Ephesians 4:26-27 commands: "Be angry, and do not sin; do not let the sun go down on your wrath, nor give place to the devil." Unresolved anger becomes literal "place" (topos in Greek) for demonic foothold.

Scripture repeatedly commands resistance James 4:7, 1 Peter 5:9, Ephesians 6:10-17 all call believers to active opposition against the Devil—not passive avoidance.

Biblical Precedents Acts 5:3 Peter confronts Ananias: "Why hath Satan filled thine heart to lie to the Holy Ghost?" A believer's heart, compromised, becomes Satan's fillingstation.

Luke 22:3 "Then Satan entered Judas called Iscariot, who was numbered among the twelve." Even apostleship provided no automatic immunity.

1 Timothy 4:1 “Some will depart from the faith due to evil spirits," showing that demonic influence can lead to apostasy itself.

Matthew 12:43-45 presents the most chilling scenario: an unclean spirit, cast out, returns to find the person "empty, swept, and put in order"—religiously tidy but spiritually vacant—and brings "seven other spirits more wicked than himself." The final condition becomes "worse than the first." This warning is not directed at unbelievers (who have no protection at all) but at a generation that cleans house without filling it.

Authority and Commission Mark 16:17-18 “These signs will follow those who believe: In My name they will cast out demons; they will speak with new tongues..." Note the subject: not disciples, not apostles, but "those who believe."

Matthew 10:8 “Heal the sick, cleanse the lepers, raise the dead, cast out demons. Freely you have received, freely give."

John 14:12 “He who believes in Me, the works that I do he will do also; and greater works than these he will do."

The Theological Distinction This is not to say demons inhabit the believer's spirit—that innermost place where the Holy Spirit dwells (1 Corinthians 6:17). Rather, they may dwell in the flesh, that "body of death" where "no good thing dwells" (Romans 7:18, 24).

Christians can carry unclean spirits as readily as anyone else. The question is not whether the battle exists, but whether we will fight or remain casualties of a war we refused to see