2 Kings 20:12-13

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.