To deny the possibility, nay, the actual existence of witchcraft and sorcery, is at once flatly to contradict the revealed word of God in various passages both of the Old and New Testament, and the thing itself is a Truth to which every nation in the world hath, in its turn, borne testimony, by either example seemingly well attested or by prohibitory laws, which at least suppose the possibility of a commerce with evil spirits.

William Blackstone (Judge 1723 – 1780)