2 Kings 20:9-11

New International Version - UK

⁹ Isaiah answered, ‘This is the Lord’s sign to you that the Lord will do what he has promised: shall the shadow go forward ten steps, or shall it go back ten steps?’

¹⁰ ‘It is a simple matter for the shadow to go forward ten steps,’ said Hezekiah. ‘Rather, let it go back ten steps.’

¹¹ Then the prophet Isaiah called on the Lord, and the Lord made the shadow go back the ten steps it had gone down on the stairway of Ahaz.