I found this chart on a site that I thought gave a interesting understanding of the role of Jewish tradition compared to Biblical Israel. I think it gives a visual understanding to the concept that we follow the Torah andpromises made to Abraham, and the Jews originally followed the same thing but this may be different then modern day Judiasm. Check it out. Right click the link below and select openin new window.
http://www.thesilvertrumpets.info/charts/jewishbw.htm
Feel free to comment by replying to this thread
The site was updated and is starting to have other languages. The new link is http://www.thesilvertrumpets.info/english/scripture/chart/rabbinic.htm