Hezekiah is referring to the letter from Sennacherib. The meaning of this can be made clear. AT: "in the message he has sent" (See: [[rc://en/ta/man/translate/figs-explicit]])
# Turn your ear
"Incline your ear" or "Turn your head." This means to turn your head so that you can hear something better.
This is a generalization. The kings had destroyed many of the nearby lands, but not necessarily all lands. AT: "many of the nations and their lands" (See: [[rc://en/ta/man/translate/figs-hyperbole]])