Envoys from the King Merodoch-Balan of Babylon come to visit Hezekiah to congratulate him on his surprising recovery.
Hezekiah thinks these guys are fairly boss. He gives them a tour of his palace and store-rooms, showing them his riches and oil and spices—his most cherished possessions.
Isaiah asks Hezekiah what he showed them and Hezekiah's like "Uh, everything."
Isaiah says there will be a time when all of that stuff belongs to the Babylonians, since they're going to conquer Judah and make Hezekiah's sons serve as eunuchs in Babylon—though not in Hezekiah's lifetime.
Hezekiah is very pleased and relieved that he'll be dead by that time.