2 Kings 20:8-10

New King James Version

⁸ And Hezekiah said to Isaiah, ^(A)“What is the sign that the Lord will heal me, and that I shall go up to the house of the Lord the third day?”

⁹ Then Isaiah said, ^(B)“This is the sign to you from the Lord, that the Lord will do the thing which He has spoken: shall the shadow go forward ten degrees or go backward ten degrees?”

¹⁰ And Hezekiah answered, “It is an easy thing for the shadow to go down ten ^[a]degrees; no, but let the shadow go backward ten degrees.”