Madmenah - This city is mentioned nowhere else. The city of Madmanna, or Medemene, mentioned in Joshua 15:31, was in the bounds of the tribe of Simeon, and was far south, toward Gaza. It cannot be the place intended here.
Is removed - Or, the inhabitants have fled from fear; see Isaiah 10:29.
Gebim - This place is unknown. It is nowhere else mentioned.
Gather themselves to flee - A description of the alarm prevailing at the approach of Sennacherib.