A talmid of this blog sent this to me. The wording and commentary is mine, the chiddush is his.
According to the chronology from Seder Olam Rabba, David HaMelech was born in the year 2854, which is exactly half of 5708.
Let's assume that David HaMelech's life, therefore, parallels now, only half as fast.
David HaMelech rose to power at age 30, but only over the tribe of Yehudah, from Chevron, for 7.5 years.
mid-5708 + 30 * 2 = mid-5768.
7.5 * 2 = 15
mid-5768 - mid-5783
Therefore, the time when David HaMelech reigned only over his own tribe parallels what has already been written here.
- I could bring a kashya, in other places I have written slightly less than 15 years. But behold we have written in one place in Divrei HaYamim 1 29:26 that David HaMelech only reigned in Chevron for 7 years. 7 + 7.5 = 14.5, bringing us to the time of the Omer 5768 until the beginning of 5783, as we have seen before.
- Furthermore, it seems to me that Chevron represents Zechut Avot, which is necessary for the Geulah: 15 years for the 3 forefathers, 5 years each. One the Zechut is aroused, we can arrive at Yerushalayim.
- Alternatively, the 15 years could be re-divided in 2, each 7.5 years represents another aliyah to Yerushalayim.
- The Talmud Yerushalmi Brachot 2:4 (17a) brings the idea that David HaMelech is Moshiach.