Witches and familiars are distinctly different while being sacrosanct at the same time. It is to say you can’t be a witch or communicate with familiar spirits without demonic interaction. The Bible has a lot to say about witchcraft. Witchcraft and its many cousins, such as fortune-telling and necromancy, are Satan’s counterfeits to holy spirituality. The Bible expressly condemns all forms of witchcraft.
Since early times, people have sought supernatural experiences God did not endorse. The nations that surrounded the Promised Land were saturated with such practices, and God had stern words for His people concerning any involvement with them. “When thou art come into the land which the Lord thy God giveth thee, thou shalt not learn to do after the abominations of those nations. There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch. Or a charmer, or a consulter with familiar spirits, or a wizard, or a necromancer. For all that do these things are an abomination unto the Lord: and because of these abominations the Lord thy God doth drive them out from before thee.”Deuteronomy 18:9–12
God takes witchcraft very seriously. The penalty for practicing witchcraft under the Mosaic Law was death (Exodus 22:18; Leviticus 20:27). “So Saul died for his transgression which he committed against the Lord, even against the word of the Lord, which he kept not, and also for asking counsel of one that had a familiar spirit, to enquire of it” 1 Chronicles 10:13 In the New Testament, “sorcery” is translated from the Greek word pharmakeia, from which we get our word pharmacy (Galatians 5:20; Revelation 18:23). Witchcraft and spiritism often involve the ritualistic use of magic potions and mind-controlling drugs. Using illicit drugs can open ourselves up to the invasion of demonic spirits. Engaging in a practice or taking a substance to achieve an altered state of consciousness is a form of witchcraft.
There are only two sources of spiritual power: God and Satan. Satan has only the power that God allows him to have, but it is considerable (Job 1:12; 2 Corinthians 4:4; Revelation 20:2). To seek spirituality, knowledge, or power apart from God is idolatry, closely related to witchcraft. “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.” 1 Samuel 15:23 Witchcraft is Satan’s realm, and he excels in counterfeiting what God does. When Moses performed miracles before Pharaoh, the magicians did the same things through demonic power (Exodus 8:7). At the heart of witchcraft is the desire to know the future and control events that are not ours to control. Those abilities belong only to the Lord. This desire has its roots in Satan’s first temptation to Eve: “You can be like God” Genesis 3:5
Since the Garden of Eden, Satan’s major focus has been to divert human hearts away from worship of the true God (Genesis 3:1). He entices humans with the suggestions of power, self-realization, and spiritual enlightenment apart from submission to the Lord God. Witchcraft is merely another branch of that enticement. To become involved in witchcraft in any way is to enter Satan’s realm. Seemingly “harmless” modern entanglements with witchcraft can include horoscopes, Ouija boards, Eastern meditation rituals, and some video and role-playing games. Any practice that dabbles in a power source other than the Lord Jesus Christ is witchcraft. Revelation 22:15 includes sorcerers/witches in a list of those who will not inherit eternal life: “For without are dogs, and sorcerers, and whoremongers, and murderers, and idolaters, and whosoever loveth and maketh a lie.”
Satan can create much havoc, harm, and destruction, even in the lives of believers (1 Thessalonians 2:18; Job 1:12–18; 1 Corinthians 5:5). However, if you belong to Christ, there is no power that can ultimately defeat you (Isaiah 54:17). “And when they shall say unto you, Seek unto them that have familiar spirits, and unto wizards that peep, and that mutter: should not a people seek unto their God? for the living to the dead?” Isaiah 8:19 Witchcraft and its many counterparts promise spirituality but lead only to emptiness and death (Micah 5:12; Galatians 5:19–21).
The word familiar is from the Latin familiaris, meaning a "household servant," and is intended to express the idea that sorcerers had spirits as their servants ready to obey their commands. Those attempting to contact the dead, even to this day, usually have some sort of spirit guide who communicates with them. These are familiar spirits. Leviticus 19:31; 20:6, 27; and Deuteronomy 18:9-14 refer to “mediums and familiar spirits” and forbids being involved with them, as they are an abomination to the Lord. A medium is one who acts as a liaison to supposedly contact or communicate with the dead on behalf of the living. In reality mediums are contacting demons who convince the mediums that they are “familiar” and can be trusted and believed. The practices associated with mediums and familiar spirits were banned in Israel, and the punishment for practicing such things was death.
Familiar spirits and spirit guides are under the control of their master, Satan. They influence people to spread lies and deceit in order to thwart the kingdom of God. To knowingly open oneself to the work of demons is an evil thing: "There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch. Or a charmer, or a consulter with familiar spirits, or a wizard, or a necromancer. For all that do these things are an abomination unto the Lord: and because of these abominations the Lord thy God doth drive them out from before thee." Deuteronomy 18:10-12
Some avenues through which demons or "familiar spirits" can gain entrance into a person’s life are divination, transcendental meditation, visualization, necromancy, witchcraft, drugs, and alcohol. These are all activities that believers are exhorted to avoid. Instead, we are to be filled with the Holy Spirit, with love, with joy, and with the fullness of life that comes from Jesus the Christ. We are also to be on guard, "for our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms" Ephesians 6:12