Zechariah 12:10-11; Zechariah 14:4

10 “And I will pour out on the house of David and the inhabitants of Jerusalem a spirit of grace and supplication. They will look on me, the one they have pierced, and they will mourn for him as one mourns for an only child, and grieve bitterly for him as one grieves for a firstborn son. 11 On that day the weeping in Jerusalem will be as great as the weeping of Hadad Rimmon in the plain of Megiddo.
4 On that day his feet will stand on the Mount of Olives, east of Jerusalem, and the Mount of Olives will be split in two from east to west, forming a great valley, with half of the mountain moving north and half moving south.