Albert Barnes Commentary 2 Kings 19:11

"Behold, thou hast heard what the kings of Assyria have done to all lands, by destroying them utterly: and shalt thou be delivered?" — 2 Kings 19:11 (ASV)

All lands — This boast is in strict accordance with the general character of the Assyrian inscriptions. Hyperbole is the common language of the East, but in this instance, it was not as extreme as in some others. The Assyrians under Sargon and Sennacherib had enjoyed an uninterrupted series of military successes. They had succeeded in establishing their preeminence from the Median desert to the banks of the Nile, and from the shores of Lake Van to those of the Persian Gulf.