Leviticus 20:26-27

Amplified Bible

²⁶ You are to be holy to Me; for I the Lord am holy, and have set you apart from the peoples (nations) to be Mine.

²⁷ ‘A man or woman who is a medium [who pretends to consult the dead] or who is a spiritist shall most certainly be put to death, and be stoned with stones; their blood is on them.’”