Rav and Samuel differed with regard to the Machpelah Cave, to which Jacob referred in , and in which the Patriarchs and Matriarchs were buried. One said that the cave consisted of two rooms, one farther in than the other. And the other said that it consisted of a room and a second story above it. The Gemara granted that the meaning of “Machpelah” — “double” — was understandable according to the one who said the cave consisted of one room above the other, but questioned how the cave was “Machpelah” — “double” — according to the one who said it consisted of two rooms, one farther in than the other, as even ordinary houses have two rooms. The Gemara answered that it was called “Machpelah” in the sense that it was doubled with the Patriarchs and Matriarchs, who were buried there in pairs. The Gemara compared this to the homiletic interpretation of the alternative name for Hebron mentioned in “Mamre of Kiryat Ha’Arba, which is Hebron.” Rabbi Isaac taught that the city was called “Kiryat Ha’Arba” — “the city of four” — because it was the city of the four couples buried there: Adam and Eve, Abraham and Sarah, Isaac and Rebecca, and Jacob and Leah.