Francine Rivers is an author I adore. I've been waiting a while to read this story as I knew it was part of a series and I wanted the series to be complete before I delved into any of the books.
The series is called the Men of Encouragement. Each book is based on a man in the Bible who has a supporting role to another man. The Priest tells the story of Aaron, brother to Moses (found in the book of Exodus). (Coincidentally for me, my pastor has just been working through a series on the book of Exodus so the writings are freshly familiar in my mind.) Having just read through Exodus I can honestly say that Rivers stays true to the scriptures. Yes, this is a novel. She has added thoughts and dialogue to a familiar story. She does it very well. She is historically accurate and biblically faithful. It is why I call her one of my favorite authors. She is very good at what she does. I thoroughly look forward to the next book in the series, The Warrior, which tells the story of Caleb.