Albert Barnes Commentary 2 Kings 18:34

"Where are the gods of Hamath, and of Arpad? where are the gods of Sepharvaim, of Hena, and Ivvah? have they delivered Samaria out of my hand?" — 2 Kings 18:34 (ASV)

Arpad was situated somewhere in southern Syria, but it is impossible to determine its exact position. Sargon mentions it in an inscription as joining with Hamath in an act of rebellion, which he punished. It was probably the capture and destruction of these two cities on this occasion that caused them to be mentioned together here (and in 2 Kings 19:13 and Isaiah 10:9).

Sennacherib cites these events as recent examples of the inability of the nations’ gods to protect their cities. For commentary on the other cities mentioned in this verse, see the notes on 2 Kings 17:24.