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?
behold, I will put a fleece of wool in the floor; and if the dew be on the fleece only, and it be dry upon all the earth besides, then shall I know that thou wilt save Israel by mine hand, as thou hast said.