What was worse, he had his wife partake of the meal in honor of the embassy, and, most heinous crime of all, he opened the holy Ark, and pointing to the tables of law within it, said to the heathen: "With the help of these we undertake wars and win victories." God sent Isaiah to reproach Hezekiah for these acts. The king, instead of confessing his wrong at once, answered the prophet haughtily. Then Isaiah announced to him that the treasures taken from Sennacherib would revert to Babylon some time in the future, and his descendants, Daniel and the three companions of Daniel, would serve the Babylonia ruler as eunuchs.
Isaiah and the Ark of Hezekiah
Legends of the Jews 9:39