II Kings 20:5-6

“Return and tell Hezekiah the leader of My people, ‘Thus says the LORD, the God of David your father: “I have heard your prayer, I have seen your tears; surely I will heal you. On the third day you shall go up to the house of the LORD. And I will add to your days fifteen years. I will deliver you and this city from the hand of the king of Assyria; and I will defend this city for My own sake, and for the sake of My servant David.” ’ ”