קבלה אויף שמות 6:3

In contrast, our teacher Moshe, peace be upon him, entered the Tent of Meeting-Ohel Mo’ed-אהל מועד, and spoke with HaShem-יהו״ה face to face,¹³⁹Numbers 12:6-8 this being “the polished lens-Aspaklariya Metzuchtzachat-אספקלריא מצוחצחת.”¹⁴⁰Midrash Vayikra Rabba 1:14 and elsewhere. However, all the other prophets spoke with HaShem-יהו״ה through His title Lord-Adona”y-אדנ״י, which is the “unpolished lens-Aspaklariya She’Eina Metzuchtzachat-אספקלריא שאינה מצוחצחת.” This is the secret of the verse,¹⁴¹Exodus 6:3 “I appeared to Avraham, to Yitzchak, and to Yaakov as the Self-sufficient God-E”l Shaddai-א"ל שדי, but My Name HaShem-יהו״ה I did not make known through them.” That is, “I did not reveal Myself to them with My Name HaShem-יהו״ה, for them to perceive Me through the polished lens-Aspaklariya Metzuchtzechet-אספקלריא מצוחצחת, but rather as the Self-sufficient God-E”l Shaddai-א"ל שדי.” As stated toward the end of the First Gate, you already know that the Self-Sufficient One-Shaday-שדי is the matter of His quality of Lordship-Adona”y-אדנ״י.