Kabbalah zu Bereschit 36:31

He opened with the verse, “And these are the kings that reigned in the land of Edom” (Bereshit 36:31), as said, “For, lo, the kings were assembled, they came on together” (Tehillim 48:5). Where were they assembled – in the land of Edom, where judgments have a hold. “They came on together,” as written, “and… died… reigned in his place” (Bereshit 36:31-39). “As soon as they saw, they were astounded; they were affrighted; they rushed away” (Tehillim 48:6), because they could not continue to exist where they were but were destroyed and died, since the king’s insignia were not yet prepared and the holy city, that is, Malchut, and its walls were not yet ready, (as said above in the Greater Gathering of Naso, section 12; study there).