Az Enyclopaedia Britannica szócikke: "Rabbinic Judaism, the normative form of Judaism that developed after the fall of the Temple of Jerusalem (AD 70). Originating in the work of the Pharisaic rabbis, it was based on the legal and commentative literature in the Talmud, and it set up a mode of worship and a life discipline that were to be practiced by Jews worldwide down to modern times." https://www.britannica.com/topic/Rabbinic-Judaism
Raba made the following exposition: What is the purport of the Scriptural text: And, furthermore my son, be admonished: Of making many books etc.? My son, be more careful in [the observance of] the words of the Scribes than in the words of the Torah, for in the laws of the Torah there are positive and negative precepts; but, as to the laws of the Scribes, whoever transgresses any of the enactments of the Scribes incurs the penalty of death. In case you should object: If they are of real value why were they not recorded [in the Torah]? Scripture stated: ‘Of making many books there is no end’ Eiruvin 21b (The Judaic Classics Library - The Soncino Talmud). http://jewishroots.net/library/anti_missionary_objections/does_the_talmud_take_precedence.html
