I assume you will have to discuss Opitz and Melleby’s ideas on the connection between faith and learning (quite a controversial theme). However, it seems to me that your professor is open to a wide range of opinions. If not (and if, by any chance, your views clash), try to be on the safe side by presenting a more detached, more neutral point of view.

As for the introduction, you could say something along these lines: The course presented numerous thought-provoking ideas on the connection between faith and academics, some of which will be discussed in the present essay. The questions to be dealth with, in this paper, have been selected in terms of [elaborate].

Main body: as you discuss each question, keep in mind that you will have to present one of the following points of view: (1) FOR (build arguments in favor of all of them or of one of the ideas), (2) AGAINST or (3) NEUTRAL (assume a detached outlook on the topics you have selected).

Conclusion: You should stress that both the book and the course have played an important role in your education. [Refer back to the ideas discussed above in order to back up this assertion.]