There are only a handful of times that the Bible talks about ghosts as far as our modern day understanding of ghosts is concerned (entities appearing or speaking).
This episode discusses 3 major times the Bible talks about it and what that means to us.
This is part 2, so if you haven't listened to S3 Episode 4 (part 1), you might want to listen to that first.
We already discussed what happens to the human spirit when we die (episode 3), so this finally gives the answer as to what hauntings and ghosts actually are.