The tone of the work is instructive. It is informative, and clear. The narrative voice is direct in that it comes across as secular rather than being strongly aligned with any of the religions. It might be so, but the reader is not assumed to be a Catholic. Some awareness of the history of religion and an interest in an academic rigor and precision are built into the tone of the work. The author presents the work rather objectively, but with a built-in 'Western' filter.