He's actually a very solid Thomist ... but this stuff about exorcisms, especially the lay deliverance prayers does not sound right, for the reasons that both Yeti and I have articulated. At best, there's really no need for these deliverance prayers, and at worst they could invite diabolical retribution for attempting to do it without the requisite autority or competence.
Ladislaus, I'm not remotely as determined to promote the praying of these prayers as Yeti and yourself are in denouncing them.
The bottom line is the question of authority. And if the Church has defined the authority of laymen to use certain prayers, which they have, then I suspect that lies at the heart of Fr Ripperger's confidence in presenting them for use by the laity.
I realize not everyone on the forum here has a copy of Dominion by Fr Ripperger. I do have it and looking through it last night I see that it's not simply his opinion the prayers and question are safe for the laity, but rather it's his conclusion after his research and study of many works. He cites St Thomas, St Alphonsus, and numerous other sources.
I'll begin going through the pertinent text and post a synopsis of it. I'll need time though. Ripperger uses many terms I'm not familiar with and I will have to do some homework so I can understand the context and so forth.
The Chapter titled Structure of Authority, which is around 70 pages is not easy reading for a lot of us.