The Bible simply provides little information on this topic, the author is making it all up, speculating with his own vain imagination.
I think it's speculating with your own "vain imagination" to assume that he's using only his imagination. He's an experienced exorcist. That means he has more than just imagination to go on.
And why would you limit yourself to the words of Scripture? Demons are real, therefore our experience of them is real, therefore it stands to reason that there is evidence for them that comes from our own experience, and from the application of the wisdom of holy men, in addition to that found in Scripture.
Scripture has nothing to say about the hazards of being a careless pedestrian in automobile traffic. Nevertheless, I think you're probably aware of those hazards and take steps to mitigate them in your own life. Why? Because you have actual, lived, experience of those hazards. Exorcists have actual, lived, experience of demons and their behavior patterns.
“There is almost nothing in this treatise that can be supported from the Biblical text.
The Bible simply provides little information on this topic, the author is making it all up, speculating with his own vain imagination.”
Not true.. Much of it is supported. However, many of the details are incorrect. This is what happens when one learns to do the work from someone else rather than the
Spirit flowing within.
The author is in no way being vain.
What did Sergent Friday say? " just the facts "
Just where did he gets his "facts" !
The Bible simply provides little information on this topic, the author is making it all up, speculating with his own vain imagination.
The Bible is not the sole rule of faith and morals to of the Church, so we're not concerned that all this data is not explicitly contained within the Holy Book.
The sources, which I ennumerated before in a separate post, are worthy of credit, at least for us Catholics - and many Orthodox and Anglo-Catholics. Of course, one needs to be open and receptive to the full spectrum of Revelation God granted to the Church which ceased with the death of the last Apostle and is kept alive in the Church's oral proclamation and in Holy Writ.
-Theo