A full body of oral law covers many aspects of behavior.

From a legal point of view, an oral law can be:

After continued persecution more of the oral law was committed to writing.

This parallel set of material was originally transmitted orally, and came to be known as "the oral law".

Another movement that rejected the oral law was Karaism.

As such, despite codification, interpretation of the "oral law" is likewise required.

A few of the essays address issues of oral law.

They did have their own oral law.

They argue that the truth of the oral law given to Moses could only be in one opinion, not many opinions.

Many cultures do have an oral law, while most legal systems of today have a formal written organisation.