Isaiah 38:7

Then the LORD’s word came to Isaiah, saying,

“Go, and tell Hezekiah, ‘The LORD, the God of David your father, says, “I have heard your prayer. I have seen your tears. Behold, I will add fifteen years to your life.

I will deliver you and this city out of the hand of the king of Assyria, and I will defend this city.

Behold, I will cause the shadow on the sundial, which has gone down on the sundial of Ahaz with the sun, to return backward ten steps.”’” So the sun returned ten steps on the sundial on which it had gone down.

The writing of Hezekiah king of Judah, when he had been sick, and had recovered of his sickness:

I said, “In the middle of my life I go into the gates of Sheol.

I am deprived of the residue of my years.”