I was reading this 4/03/2006 article called Controversial Faith Healer Coming To Atlanta at http://www.wsbtv.com/entertainment/8435137/detail.html and The Beliefs and Teachings of John of God (a medium) at http://www.johnofgodinatlanta.com/beliefs.html state the following:

"John of God is a medium in trance. He literally goes into an altered state of mind and "lends" his body over to 30 spiritual entities - these are beings who once inhabited this earth. They are the spirits of deceased doctors including such famous Brazilians as: Dr. Orvaldo Cruz, Dr. Fritz, Dr. Jose Valdivino, Dr. Augusto along with other surgeons, healers, psychologists and theologians who are working through John to help mankind."

 

These spirits of deceased doctors are what the Bible calls "familiar spirits" which are demons claiming to be these deceased doctors. A medium is another name for "a consulter with familiar spirits" and Leviticus 18:10-12 states "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 charmers 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."

 

Also according to the article at http://www.johnofgodinatlanta.com/history.html this medium who calls himself John of God is a Roman Catholic. However, he should not be consulting with familiar spirits because the Bible tells us not to and neither should we as believers.