Contradiction with 1 John 4:4
This verse speaks of the power of God within believers overcoming evil, which can contrast with Luke 8:29's depiction of a man being overcome by an unclean spirit.
1 John 4:4: Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world.
Contradiction with James 4:7
This verse advises to resist the devil and he will flee, contrasting with how easily the man in Luke 8:29 is overcome by the devil.
James 4:7: Submit yourselves therefore to God. Resist the devil, and he will flee from you.
Contradiction with Romans 16:20
This verse suggests that God will crush Satan under believers' feet, contradicting the power that the evil spirit exerts in Luke 8:29.
Romans 16:20: And the God of peace shall bruise Satan under your feet shortly. The grace of our Lord Jesus Christ [be] with you. Amen. [bruise: or, tread]
Contradiction with 2 Timothy 1:7
This verse implies believers have a spirit of power, love, and a sound mind, contradicting the chaotic possession described in Luke 8:29.
2 Timothy 1:7: For God hath not given us the spirit of fear; but of power, and of love, and of a sound mind.
Contradiction with 1 Corinthians 15:57
Victory is given through Jesus Christ, contrasting with the lack of immediate victory over the unclean spirit in Luke 8:29.
1 Corinthians 15:57: But thanks [be] to God, which giveth us the victory through our Lord Jesus Christ.