Zechariah 12:11 in the King James Version
In that day shall there be a great mourning in Jerusalem, as the mourning of Hadadrimmon in the valley of Megiddon.
Context
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.
12 The land will mourn, every family apart; the family of David’s house apart, and their wives apart; the family of the house of Nathan apart, and their wives apart;