A major source of difference between these groups is their approach to Jewish law.
He was an expert in Jewish law, his family said.
There are three forms of skin known to Jewish law.
How to integrate the economy of the state in line with Jewish law.
At age 16 he began his writings on Jewish law.
"I started doing it because this is what Jewish law says you are supposed to do," she said.
An introduction to the history and sources of Jewish law.
His works on Jewish law, if indeed ever committed to writing - have not reached us.
In this view, traditional Jewish law is still seen as binding.
Such fine distinctions are central to Jewish law, life and identity.