Hi, theundecided2004.
Oooh, this will be so much fun! I dug deeper in to Christian history after I met the JW’s. Am I ever glad I did! I won’t ever study the same again.
I'm an inactive JW that wants to begin my critical study of this religion and make a comparison between this faith and mainstream Christianity. In addition to catching the WTBTS in its lies, changing doctrines, and stuff critical to leaving the faith, I also want to get a historical perspective on everything.
Instead of bouncing around your bible trying to follow a word or theme, learn to read each book in context. Understand when the book was written, read about the author, what the book’s major themes are. Instead of trying to apply modern issues to the bible, understand the issues and concerns that motivated the books and letters in the first place.
I find these to be invaluable resources: http://www.newadvent.org/cathen/ This is where I learned about the Gnostics, Arians and other heresies that threatened the early church.
The Christian History Institute was also a great resource, giving me a solid grounding on the early church leaders and the controversies that divided them. http://chi.gospelcom.net/
About being a brave searcher after truth: http://www.leaderu.com/common/sixenemies.html
Researching the basic doctrines of mainline (orthodox) churches is easy. They all follow the Nicene creed. I used this site heavily: http://www.apologeticsindex.org/
The WTBTS booklet, “Organized to do Jehovah’s Will” might be the closest equivalent to the Nicene Creed. At the end there is a long list of doctrinal questions ranging from morality to loyalty that all JW’s must ascribe to. That booklet will no doubt be revised in years to come. Unlike the Nicene Creed, which has survived centuries. AlanF helped me understand what the core doctrine of the JW’s is (the part that is invoilate, that cannot change). Every JW must believe that the Watchtower Society is the Faithful and Discreet Slave and that they cannot be questioned. Everything else can be modified, including the divinity of Christ.
In the end my study came down to whether I believe that the Nicene creed was a corruption or a protection of Christianity.