Who are Sangomas, Ancestors and Traditional Doctors? Part One

There are a number of verses especially in the Old Testament that deal with the topic of sangomas and traditional doctors. Obviously the Bible does not call them using those words but rather uses words like mediums and necromancers. Mediums are those people who consult the spirit of the dead and necromancers are those people who allow the spirit of the dead to occupy and use their bodies. Mediums and necromancers represents more or less what we understand today, and have always understood as sangomas and traditional doctors. In saying this, sangomas and traditional doctors, just like mediums and necromancers, consult the spirit of the dead as the main part of their work. Some allow the spirit of the dead to speak through them. Ancestors are dead people whose spirit can allegedly be consulted for whatever purpose. They apparently have interest and are believed to can influence what goes on in life. What does the Bible say about Consulting the Spirit of the dead? ...