Hezekiah gives a tour to Babylonian envoys
Envoys came to Judah from Babylon and Hezekiah showed them all his treasures. Isaiah prophesied that everything would be taken away to Babylon.
Key passages
2 Ki 20:12–19

At that time, Berodak-Baladan the son of Baladan king of Babylon sent letters and a gift to Hezekiah, for he had heard that Hezekiah had been ill. Hezekiah heard about them and showed them all of the house of his treasure, both the silver and …

2 Ch 32:31

And thus in the matter of the envoys of the commanders of Babylon who had been sent to him to seek the sign that had happened in the land, God forsook him, to test him and to know all that was in his heart.

Is 39:1–8

At that time, Merodach-Baladan, son of Baladan, king of Babylon, sent letters and a present to Hezekiah, for he heard that he had been sick and recovered. And Hezekiah rejoiced over them and showed them his house of aromatic gum, the silver, gold, spices, …