Zech 12:10-11

10 I will pour on David’s house and on the inhabitants of Jerusalem the spirit of grace and of supplication. They will look to me whom they have pierced; and they shall mourn for him as one mourns for his only son, and will grieve bitterly for him as one grieves for his firstborn. 11 In that day there will be a great mourning in Jerusalem, like the mourning of Hadadrimmon in the valley of Megiddo.