2 Kings 20:12-15

12At that time Merodach-baladan son of Baladan, king of Babylon, sent letters and a gift to Hezekiah since he heard that he had been sick.

13Hezekiah listened to the letters and showed the envoys his whole treasure house — the silver, the gold, the spices, and the precious oil — and his armory, and everything that was found in his treasuries. There was nothing in his palace and in all his realm that Hezekiah did not show them.

14Then the prophet Isaiah came to King Hezekiah and asked him, “Where did these men come from and what did they say to you?” Hezekiah replied, “They came from a distant country, from Babylon.”

15Isaiah asked, “What have they seen in your palace?” Hezekiah answered, “They have seen everything in my palace. There isn’t anything in my treasuries that I didn’t show them.”