“Guest” – Oreach(אורח) is Or Chet – the Light of Eight (אור ח'). Thus, Abraham received guests, for chet is the World that is Coming,²¹) represents one level above the creation, which is the transcendent World to Come. It also corresponds to the sefirah of Binah, which is the eighth sefirah when counting up from Malchus. like a guest that is coming. And this is the World of Binah. Therefore, Abraham was the attribute of Kindness (Chesed), “the day of all days.”²², on parashas Yisro 19:6. Because the light of Chesed goes in all the Sefiros. (See the writings of the Arizal in the laws of Succah). Therefore, Abraham would bring the Light of Chet, [which is] the Binah, into all the Sefiros. Thus, he merited the entire Torah by means of the letter hey added to his name.²³ to his name, changing it from Abram to Abraham. The first letter hey in the Tetragrammaton corresponds to the sefirah of Binah, which is the source of the Torah. For this is the World of Binah, from where the Torah issues forth. *Degel Machane Ephraim,*in the section: “Things I heard from my Grandfather”

footnotes: ²¹ The number seven represent the completion of creation, as in the seven days of the week. The number eight (chet ²² See Be’er Mayim Chayim ²³ The Sages say that Abraham knew and observed the entire Torah, as the verse says: “Because Abraham hearkened to My voice, and kept My charge, My commandments, My statutes, and My laws” (Genesis 26:5). According to the Baal Shem Tov, this is because G-d added the letter hey