Disobedience equals witchcraft

1 Samuel 15:23 For rebellion [is as] the sin of witchcraft, and stubbornness [is as] iniquity and idolatry. Because thou hast rejected the word of the LORD, he hath also rejected thee from [being] king.

A disobedient person to a simple command of God is no different from one doing witchcraft. Why? Because both are in rebellion to God. 

Many times, we point to those in the world as being rebellious, (true unsaved people are rebellious by nature, yet for believers are righteous by nature) but we walk in similar footsteps when we do not obey God. Walking in disobedience is subjecting yourself to the rule and authority of the first rebellious and disobedient being called the devil. And you give leeway for his tormenting demons to oppress you. Jesus said that when such demons find such a man's house (soul) empty and garnished, they invite seven more deadly ones. And the man's state before theirs getting saved becomes worse than that time. That's why it's not good to play around with sin. Sin is simply rebellion against the rule of God, and that results in multiple problems unless one repents and walks in forgiveness. 

What do witches do? They cast spells on people. What do believers do when they are in rebellion? Casting spells on themselves. What a pity! Nowonder, some are ever in deliverance lines for hands to be laid on them so that they get out of bondage, which is mostly self-inflicted.  

You will not need any deliverance if you start walking in obedience to God's word. In fact, as you do so, chains break by themselves.

Further scriptures 

Matthew 12:43-45 When the unclean spirit is gone out of a man, he walketh through dry places, seeking rest, and findeth none. Then he saith, I will return into my house from whence I came out; and when he is come, he findeth [it] empty, swept, and garnished. Then goeth he, and taketh with himself seven other spirits more wicked than himself, and they enter in and dwell there: and the last [state] of that man is worse than the first. Even so shall it be also unto this wicked generation.