And Yeshayahu said, “This is the sign for you from יהוה, that יהוה does the word which He has spoken: shall the shadow go forward ten degrees or go backward ten degrees?”
see, I am placing a fleece of wool on the threshing-floor. If there is dew only on the fleece, and it is dry on all the ground, then I shall know that You are saving Yisra’ĕ