Dear Rabbi Balk, I greatly enjoyed your shiur.When I thought about it,it occurred to me that there is a remez to support the idea that you mentioned. The roshei teivos of eretz chita se'ora geffen te'eina rimon eretz (without the connecting vav's) add up to 913, the gematria of bereishis, corresponding to the external aspect of creation. The roshei teivos of "eretz zayss shemen dvash" add up to 312 which is the Shem Havaya 26 times 12 (the number of possible permutations), corresponding to the internal aspect of creation. Another idea that I had - but do not know where it is going. Besides the 7 minim and the 7 days of Creation there are more "7's" that are 5 plus 2: the 7 neiros and the 7 seforim of Torah (originally 5 but also 7). There must be a conceptual connection that I haven't yet found. All the best