Learn, understand, then decide whether you accept or reject.
This course opened my eyes on the belief system of Judaism. The professor is probably the most qualified in this course than all the other Great World Religions courses, because it seems that he is a devout practitioner.
This book helps clarify how Jews fit (or didn't fit) into Muslim and Christian societies. Some ideas come across as a little surprising, such as how Muslims actually treated them better than European Christians.