Dvar Torah given at Kehilat Hadar, January 2010 Shabbat Shalom. Parshat Vaera opens with these words: וַיְדַבֵּ֥ר אֱלֹהִ֖ים אֶל־מֹשֶׁ֑ה וַיֹּ֥אמֶר אֵלָ֖יו אֲנִ֥י יְהוָֽה׃ וָאֵרָ֗א אֶל־אַבְרָהָ֛ם אֶל־יִצְחָ֥ק וְאֶֽל־יַעֲקֹ֖ב בְּאֵ֣ל שַׁדָּ֑י וּשְׁמִ֣י יְהוָ֔ה לֹ֥א נֹודַ֖עְתִּ לָהֶֽם׃ “G-d Spoke to Moses and said to him “I am Hashem, I appeared to Abraham, Issac and Jacob as El Shaddai, but I did not make Myself known to them by my name Hashem…”