Biblical References
There are several references to witchcraft in the Bible that strongly condemn such practices. For example, Deuteronomy 18:11-12 condemns anyone who "..casts spells, or who is a medium or spiritist or who consults the dead. Anyone who does these things is detestable to the Lord, and because of these detestable practices the Lord your God will drive out those nations before you", and Exodus 22:18 states "Do not allow a sorceress to live".
Some adherents of near-east religions acted as mediums, channeling messages from the dead or from a familiar spirit. The Bible sometimes is translated as referring to "necromancer" and "necromancy" (Deuteronomy 18:11) However, some lexicographers, including James Strong and Spiros Zodhiates, disagree. These scholars say that the Hebrew word kashaph, used in Exodus 22:18 and 5 other places in the Tanakh comes from a root meaning "to whisper". Strong therefore concludes that the word means "to whisper a spell, i.e. to incant or practice magic". The Contemporary English Version translates Deuteronomy 18:11 as referring to "any kind of magic".
Read more about this topic: Christian Views On Magic