Sitrei Tora: Tevrat'ın Sırları ve Sözlü Gizlilik

This is also the meaning of the phrase: "One does not hand over the secrets of the Torah except to one whose heart is worried within him, a wise master of crafts and an expert in silent speech." Then they hand over to him the chapter headings. For the concealment was oral, just as "Moses received the Torah from Sinai." If we say they were permitted to be written, it was specifically in parable and riddle, as they were written in the Haggadah of the Talmud and in the Midrashim, and not plainly as they appear in the Zohar. One who reveals secrets is as if he destroyed the high order that was established to gather secrets and not let them out. And it is written: "Do not let your mouth cause your flesh to sin." The world only exists through mystery. If this is true in worldly matters, how much more so in the secret matters of the "Ancient of Ancients" which are not revealed even to the supernal angels?