2 Kings 20:9-11

9Isaiah said, “This is the sign to you from the Lord that he will do what he has promised: Should the shadow go ahead ten steps or go back ten steps?”

10Then Hezekiah answered, “It’s easy for the shadow to lengthen ten steps. No, let the shadow go back ten steps.”

11So the prophet Isaiah called out to the Lord, and he brought the shadow back the ten steps it had descended on the stairway of Ahaz.