Isaiah 38:5

2 Then Hezekiah turned his face to the wall, and prayed unto Jehovah,

3 and said, Remember now, O Jehovah, I beseech thee, how I have walked before thee in truth and with a perfect heart, and have done that which is good in thy sight. And Hezekiah wept sore.

4 Then came the word of Jehovah to Isaiah, saying,

5 Go, and say to Hezekiah, Thus saith Jehovah, the God of David thy father, I have heard thy prayer, I have seen thy tears: behold, I will add unto thy days fifteen years.

6 And I will deliver thee and this city out of the hand of the king of Assyria; and I will defend this city.

7 And this shall be the sign unto thee from Jehovah, that Jehovah will do this thing that he hath spoken:

8 behold, I will cause the shadow on the steps, which is gone down on the dial of Ahaz with the sun, to return backward ten steps. So the sun returned ten steps on the dial whereon it was gone down.