2 Kings 20:9

And Esaias said, This [is] the sign from the Lord, that the Lord will perform the word which he has spoken, the shadow [of the dial] shall advance ten degrees: [or] if it should go back ten degrees [this would also be the sign].

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?

Isaiah said, “This will be the sign to you from Yahweh, that Yahweh will do the thing that he has spoken: should the shadow go forward ten steps, or go back ten steps?”