2 Kings 20:5-11

5“Go back and tell Hezekiah, the ruler of my people, ‘This is what the Lord, the God of your father David, says: I have heard your prayer and seen your tears; I will heal you. On the third day from now you will go up to the temple of the Lord.

6I will add fifteen years to your life. And I will deliver you and this city from the hand of the king of Assyria. I will defend this city for my sake and for the sake of my servant David.’ ”

7Then Isaiah said, “Prepare a poultice of figs.” They did so and applied it to the boil, and he recovered.

8Hezekiah had asked Isaiah, “What will be the sign that the Lord will heal me and that I will go up to the temple of the Lord on the third day from now?”

9Isaiah answered, “This is the Lord’s sign to you that the Lord will do what he has promised: Shall the shadow go forward ten steps, or shall it go back ten steps?”

10“It is a simple matter for the shadow to go forward ten steps,” said Hezekiah. “Rather, have it go back ten steps.”

11Then the prophet Isaiah called on the Lord, and the Lord made the shadow go back the ten steps it had gone down on the stairway of Ahaz.