So I didn't pay it much mind, and was unsure what special import we were supposed to extract from it. Then we discussed it in class and I realised it probably was a good intro to the intersections of law and religion/morality for people who believe that Western law somehow miraculously transcends (see what I did there?) the discourses, covert and otherwise, of god and religion that continue to permeate our lives.
Berman, btw, was born Jewish, but converted to Roman Catholicism (well before he wrote this book).
eBook The Interaction of Law and Religion