Evolution Of Jewish Law
The written law is the Torah, Nev'im and Ketuvim, together they make the Tanach. The Torah is the first part of the Tanach, the torah was given by God to Moshe, he then gave it to the people of Israel. The Torah hasn't been changed since it came from God.
Nevi'im is the second part of the Tanach. Nevi'im are writings from prophets. Prophets are people who had been given a message from god, there might be a few people who are fakes but most of the stories written in Nevi'im are all true. Some famous Nevi'im are Joshua and Shmu'el.
It is the third and final section of the Tanach.Ketuvim are ideas and concepts written down by Rabbis and highly respected Jewish figures. Such as Rashi, Rambam and