The Good Book, both the Hebrew Old Testament and the Christian New Testament are constantly invoked. Of course, anything to do with witchcraft has Hebrew or Christian origins. Both religions constantly converted the gods of other religions into horrible demonic creatures. Without Christianity there would be no witchcraft - it is an integral part of Christianity.
The 91st Psalm is invoked by Dr. Armitage in "The Dunwich Horror": "Negotium peranbulans in tenebris..." or "The pestilence that walketh in darkness..." from Psalm 91:5 (Vulgate 90:6).
[The Dunwich Horror - H.P.L.]