2 Kings 20:9

And Isaiah had replied, “This will be a sign to you from the Lord that He will do what He has promised: Would you like the shadow to go forward ten steps, or back ten steps?”
BSB · Berean Standard Bible
And Isaiah said, This sign shalt thou have of the Lord, that the Lord will do the thing that he hath spoken: shall the shadow go forward ten degrees, or go back ten degrees?
KJV · King James Version
Isaiah said, “This will be the sign to you from the Lord, that the Lord will do the thing that he has spoken: should the shadow go forward ten steps, or go back ten steps?”
WEB · World English Bible
And Isaiah said, This shall be the sign unto thee from Jehovah, that Jehovah will do the thing that he hath spoken: shall the shadow go forward ten steps, or go back ten steps?
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

This sign
Isaiah 38:7, 8; Matthew 16:1–4; Mark 8:11, 12; Luke 11:29, 30