17 “Hadad-Rimmon” is a compound of the names of two Canaanite deities, the gods of storm and thunder respectively. The grammar (a subjective genitive) allows, and the problem of comparing Israel’s grief at God’s “wounding” with pagan mourning seems to demand, that this be viewed as a place name, perhaps where Judah lamented the death of good king Josiah (cf. 2 Chr 35:25). However, some translations render this as “for” (, , , ), suggesting a person, while others translate as “of” (, , , , ) which is ambiguous.
18 For location see ; ; ; ; .

In other versions

On that day the mourning in Jerusalem will be as great as the mourning for Hadad-rimmon in the plain of Megiddo.

On that day the weeping in Jerusalem will be as great as the weeping of Hadad Rimmon in the plain of Megiddo.

On that day the mourning in Jerusalem will be as great as the mourning of Hadad-rimmon in the plain of Megiddo.

The sorrow and mourning in Jerusalem on that day will be like the great mourning for Hadad-rimmon in the valley of Megiddo.

On that day the wailing will be great in Jerusalem, like the wailing for Hadad Rimmon in the plain of Megiddo.

In that day shall there be a great mourning in Jerusalem,

As the mourning of Hadadrimmon in the valley of Megiddon.

Public Domain