“The kings came and fought,
Then fought the kings of Canaan,
In Taanach by the waters of Megiddo.
They took no gain of wealth.”
Jabin's confederacy, led by the kings of Canaan under Sisera, came to the fight, their hearts filled with the thought of booty. They fought in Taanach by the waters of Megiddo, that is, by the Kishon (Judges 4:7). This indicates that Megiddo was not standing at the time, suggesting a date around 1125 BC, Taanach, the largest city there, identifying the area.
“They took no gain of wealth.” Their expectations of booty from a glorious victory (compare Judges 5:30) turned to dust, they left the field with empty hands. Their hopes were totally dashed. Nor did they receive any reward of any kind for their activity, for they abysmally failed.