Isaiah 38:7-9

Amplified Bible, Classic Edition

⁷ And this will be the sign to you from the Lord that the Lord will do this thing that He has spoken:

⁸ Behold, I will turn the shadow [denoting the time of day] on the steps or degrees, which has gone down on the steps or sundial of Ahaz, backward ten steps or degrees. And the sunlight turned back ten steps on the steps on which it had gone down.

⁹ This is the writing of Hezekiah king of Judah after he had been sick and had recovered from his sickness: