Isaiah 38:5-7

“Go deliver this message to Hezekiah: ‘This is what YAHWEH, the God of your ancestor David, has to say to you: I have heard your heartfelt prayer and I have seen you cry tear after bitter tear. I will give you another fifteen years. I will defend Jerusalem, and I will deliver you and this city from the hand of the king of Assyria. This will be a sign to you from YAHWEH as a confirmation that I will do for you what I have promised.