Isaiah 39:1-2

At that time Merodach-baladan son of Baladan, king of Babylon, sent [messengers with] letters and a present to Hezekiah, for he had heard that he had been sick and had recovered. [2 Kin 20:12-19] Hezekiah was pleased and showed them his treasure house—the silver, the gold, the spices, the precious oil, his entire armory and everything that was found in his treasuries. There was nothing in his house nor in all his area of dominion that Hezekiah did not show them.