Isaiah 38:1-8

In those days Hezekiah was sick unto death. And the prophet Isaiah the son of Amoz came to him, and said to him, Thus saith Jehovah: Set thy house in order; for thou shalt die, and not live. And Hezekiah turned his face to the wall, and prayed to Jehovah, and said, Ah, Jehovah, remember, 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 much. And the word of Jehovah came to Isaiah, saying, 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 to thy days fifteen years. And I will deliver thee and this city out of the hand of the king of Assyria, and I will defend this city. And this shall be the sign to thee from Jehovah, that Jehovah will do this thing that he hath spoken: behold, I will bring again the shadow of the degrees which hath gone down with the sun on the dial of Ahaz, ten degrees backward. So the sun returned on the dial ten degrees, by which it had gone down.