'Mediums' in the Bible
"You are to consult neither mediums nor familiar spirits. You are never to seek them you'll just be defiled by them. I am the LORD your God.
"I'll oppose and eliminate from contact with his people whoever consults mediums or familiar spirits, thereby committing spiritual prostitution with them.
Now Samuel had died, and all Israel had mourned for him and buried him in his own town of Ramah. Saul had expelled the mediums and spiritists from the land.
The woman told him, "Look, you know what Saul has done. He has removed mediums and spiritists from the land, so why are you trying to entrap me, so as to cause my death?"
He made his son into a burnt offering, practiced witchcraft, used divination, and consorted with mediums and spirit-channelers. He practiced many things that the LORD considered to be evil and provoked him.
Furthermore, Josiah removed the mediums, the necromancers, the household gods, the idols, and every despicable thing that could be seen in the territory of Judah and in Jerusalem, so that he might confirm the words of the Law that had been written in the book that Hilkiah the priest had discovered in the LORD's Temple.
He burned his sons as an offering in the Ben-hinnom Valley, practiced fortune-telling, witchcraft, sorcery, and communicated with mediums and separatists. He did a lot of things that the LORD considered to be evil, thus provoking him.
"So when they advise you, "Ask the mediums your questions, and quiz the spiritists who chirp and mutter,' shouldn't a people instead be consulting their God and not the dead on behalf of those who are living
The spirits of the Egyptians within them will be drained of courage, and I will bring their plans to nothing. They will consult idols and spirits of the dead, and mediums and spiritists.
I will render your witchcraft powerless, and mediums will no longer exist among you.