2 Kings 20:16-18

Then Isaiah said to Hezekiah, “Hear the word of the LORD: The time will surely come when everything in your palace, and all that your predecessors have stored up until this day, will be carried off to Babylon. Nothing will be left, says the LORD. And some of your descendants, your own flesh and blood who will be born to you, will be taken away, and they will become eunuchs in the palace of the king of Babylon.”