So Isaiah the prophet cried out to the LORD, and He brought the shadow ten degrees backward, by which it had gone down on the sundial of Ahaz.
2 Kings 20:11
Surrounding context
20:10 And Hezekiah answered, "It is an easy thing for the shadow to go down ten degrees; no, but let the shadow go backward ten degrees."
20:11 So Isaiah the prophet cried out to the LORD, and He brought the shadow ten degrees backward, by which it had gone down on the sundial of Ahaz.
20:12 At that time Berodach-Baladan the son of Baladan, king of Babylon, sent letters and a present to Hezekiah, for he heard that Hezekiah had been sick.