I found  multiple books on Amazon, at https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=OCD+Christian+book

I simple used the search terms:  OCD Christian book

The most likely places you might find a discussion of this would be the two Christian psychology journals: The Journal of Psychology and Christianity, and The Journal of Psychology and Theology, both of which have websites you can find easily.

I found one abstract in PsycInfo with a book review: Christian beliefs and cognitive reframing for treating OCD.

doi: http://dx.doi.org/10.1037/a0013109

By Knowles, Philip

PsycCRITIQUES, Vol 53(38), 2008, No Pagination Specified.

Reviews the book, Can Christianity Cure Obsessive-Compulsive Disorder? A Psychiatrist Explores the Role of Faith in Treatment by Ian Osborn (see record 2008-03817-000). In this book, Osborn introduces his argument with a brief and fascinating overview of the rise of the concept of personal responsibility in the West, emerging in the Renaissance view of the sense of self. The disadvantage of this developing perspective was a magnified sense of responsibility, which the Church reinforced with a new emphasis on self-determination and empowerment. The individual now was appreciated for having the capacity to know and weigh his sins. For its part, the Roman Catholic Church developed more and more exquisitely refined manuals to assist confessors in their approach to evaluating the sins of those who were confessing. Osborn argues that this contributed to a widespread social pathology known as scrupulosity, or the tendency to obsess about minor sins. He argues that it is not unreasonable to view what he calls "twin epidemics--of scruples and of horrible thoughts" as the first widespread occurrence of obsessive-compulsive disorder (OCD). This book is valuable for drawing attention to the need to recognize, in this case, Christian religious beliefs and the role that they can play in helping to restore psychological health. (PsycINFO Database Record (c) 2016 APA, all rights reserved)

Try using google scholar as a quick way to find articles. Posting the citations for a quick search pairing OCD and mindfulness, then OCD and yoga.

Hanstede, M., Gidron, Y., & Nyklícek, I. (2008). The effects of a mindfulness intervention on obsessive-compulsive symptoms in a non-clinical student population. The Journal of nervous and mental disease, 196(10), 776-779.

Fairfax, H. (2008). The use of mindfulness in obsessive compulsive disorder: suggestions for its application and integration in existing treatment. Clinical Psychology & Psychotherapy, 15(1), 53-59.

Patel, S. R., Carmody, J., & Simpson, H. B. (2007). Adapting mindfulness-based stress reduction for the treatment of obsessive-compulsive disorder: A case report. Cognitive and Behavioral Practice, 14(4), 375-380.

Kirkwood, G., Rampes, H., Tuffrey, V., Richardson, J., & Pilkington, K. (2005). Yoga for anxiety: a systematic review of the research evidence. British Journal of Sports Medicine, 39(12), 884-891.

Shannahoff-Khalsa, D. S. (2003). Kundalini yoga meditation techniques for the treatment of obsessive-compulsive and OC spectrum disorders. Brief treatment and crisis intervention, 3(3), 369.

Khalsa, Shorter. Cope, Wyshak, & Sklar (2009). Yoga Ameliorates Performance Anxiety and Mood Disturbance in Young Professional Musicians. Appl Psychophysiol Biofeedback, 34, 279–289. DOI 10.1007/s10484-009-9103-4

Try searching the Journal for Pastoral Care, the Association of Professional Chaplains' body of research literature, and American Association of Pastoral Counselors.  These resources will be particularly helpful in finding tie-ins to CBT, story-telling therapies, etc. 

I was just researching this for a public talk on Religious Scrupulosity I'm giving for OCD Ireland, and an article in the Irish Catholic to publicise it (as priests are more likely to come in contact with it than the mental health services).

http://scholar.google.com/scholar?start=20&q=religious+scrupulosity+&hl=en&as_sdt=0,5&as_ylo=2010&as_yhi=2017

Most of the research at the moment and in the last few years has been in Israel, especially with Orthodox and ultra-orthodox Jews. Jonathan Huppert has written a lot about this.    Treating Religious Scrupulosity using CBT: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.476.4307&rep=rep1&type=pdf

Abramowitz in the USA has also written up on this subject.

Both take a CBT viewpoint and describe treatment procedures. I have a memory of a couple of case studies given as example, but all my printed papers are currently at home!

More recently there seems to be some papers on scrupulosity in Islam too.

As an atheist, I see no reason why the therapist needs to be religious themselves. I have treated a good few people here in Ireland, and the clients know a lot more about the requirements of (mostly) Catholicism than I do, and that's fine.  I know the difference between religiosity and scrupulosity, and that's where I come in.  Whatever the religion, the scrupulosity presents the same way - a total over-reliance on the rules of the religion to the nth degree and associated discomfort and anxiety.

I would read Ian Osborn's Can Christianity Cure Obsessive-Compulsive Disorder? A Psychiatrist Explores the Role of Faith in Treatment (Brazos, 2008).

https://www.amazon.com/Can-Christianity-Cure-Obsessive-Compulsive-Disorder/dp/1587432064

I would also read Mitzi VanCleve's Strivings Within--The OCD Christian: Overcoming Doubt in the Storm of Anxiety (CreateSpace, 2016).

https://www.amazon.com/Strivings-Within-Christian-Overcoming-Anxiety/dp/1517678447/

Finally, I would read Jeff Wells' Breaking Free of OCD: My Battle with Mental Pain and How God Rescued Me (Lucid, 2016).

https://www.amazon.com/Breaking-Free-OCD-Battle-Rescued/dp/1632960729/

Spirituality/R

Generally speaking, spirituality plays a pivotal role in promoting physical and behavioral health. The positive therapeutic effects of spirituality in various health settings as an effective technique in improving the wellness of the patients has been reported in many studies ( (Koenig, 2009). As you have pointed out , the application of spirituality can indubitably influence the recovery of the patients suffering from  acute stress, depression, suicide, anxiety, and substance abuse. The following may hopefully shed light on the issue you are looking for.

Best of luck,

R. Biria

https://www.pacfa.org.au/wp.../10/Spiritual-and-Religious-Therapy-Literature-Review.pdf

https://www.samhsa.gov/sites/default/files/programs.../spirituality-fact-sheet.pdf

https://www.psychiatry.ru/.../userfiles/.../Philippe%20Huguelet%20MD%20(Author),%20Har...

Hi,

Treatment of Scrupulosity-Related Obsessive-Compulsive Disorder is a chapter in the Clinical Handbook of Obsessive-Compulsive and Related Disorders.

You can also find literature on the topic in the following links:

https://ejbe.libraries.rutgers.edu/index.php/pcsp/article/view/932

http://www.sciencedirect.com/science/article/pii/S1077722910000490

http://www.sciencedirect.com/science/article/pii/S1077722901800468

http://journals.sagepub.com/doi/abs/10.1177/0145445512475134

https://psycnet.apa.org/record/2009-03825-005