2 Kings 20:9-11

21st Century King James Version

⁹ And Isaiah said, “This sign shalt thou have of the Lord, that the Lord will do the thing that He hath spoken: Shall the shadow go forward ten degrees or go back ten degrees?”

¹⁰ And Hezekiah answered, “It is a light thing for the shadow to go down ten degrees; nay, but let the shadow return backward ten degrees.”

¹¹ And Isaiah the prophet cried unto the Lord; and He brought the shadow ten degrees backward, by which it had gone down on the dial of Ahaz.