Sorry, I'm not familiar with any specific novels by Matthew James that involve both god and blood. You might want to check literary databases or ask in specialized book forums.
I don't have knowledge of any particular novels by Matthew James that contain these elements. You could try searching for reviews or summaries of his works in libraries or online book platforms. Maybe start with the most popular ones and see if they touch on these themes.
I'm unable to recommend any such novels by Matthew James at the moment. It would be a good idea to reach out to avid readers of his work, or perhaps look into any interviews or statements he has made about his writing themes. This could give you a clue as to whether he has written novels involving god and blood.