Isaiah 8:19-20

19They will say to you, “Seek oracles at the pits used to conjure up underworld spirits, from the magicians who chirp and mutter incantations. Should people not seek oracles from their gods, by asking the dead about the destiny of the living?”

20Then you must recall the Lord’s instructions and the prophetic testimony of what would happen. Certainly they say such things because their minds are spiritually darkened.