'Spirits' in the Bible

He passed his son through the fire and practiced divination and omen reading. He set up a ritual pit to conjure up underworld spirits, and appointed magicians to supervise it. He did a great amount of evil in the sight of the Lord, provoking him to anger.

Josiah also got rid of the ritual pits used to conjure up spirits, the magicians, personal idols, disgusting images, and all the detestable idols that had appeared in the land of Judah and in Jerusalem. In this way he carried out the terms of the law recorded on the scroll that Hilkiah the priest had discovered in the Lord's temple.