Leviticus 19:31

19:31 Do not turn to the spirits of the dead and do not seek familiar spirits to become unclean by them. I am the Lord your God.

Leviticus 20:6

Prohibition against Spiritists and Mediums

20:6 “‘The person who turns to the spirits of the dead and familiar spirits to commit prostitution by going after them, I will set my face against that person and cut him off from the midst of his people.

Leviticus 20:27

Prohibition against Spiritists and Mediums

20:27 “‘A man or woman who has in them a spirit of the dead or a familiar spirit must be put to death. They must pelt them with stones; their blood guilt is on themselves.’”