2 Kings 20:9-11

Young's Literal Translation

⁹ And Isaiah saith, `This [is] to thee the sign from Jehovah, that Jehovah doth the thing that He hath spoken -- The shadow hath gone on ten degrees, or it doth turn back ten degrees?'

¹⁰ And Hezekiah saith, `It hath been light for the shadow to incline ten degrees: nay, but let the shadow turn backward ten degrees.'

¹¹ And Isaiah the prophet calleth unto Jehovah, and He bringeth back the shadow by the degrees that it had gone down in the degrees of Ahaz -- backward ten degrees.