Judges 6:36-40

36And Gideon said to God, If thou wilt save Israel by my hand, as thou hast said, 37Behold, I will put a fleece of wool on the floor; and if the dew shall be on the fleece only, and it shall be dry upon all the earth besides, then shall I know that thou wilt save Israel by my hand, as thou hast said. 38And it was so: for he rose early on the next morning, and pressed the fleece, and wrung the dew out of the fleece, a bowl full of water. 39And Gideon said to God, Let not thy anger be hot against me, and I will speak but this once: let me make a test, I pray thee, but this once with the fleece; let it now be dry only upon the fleece, and upon all the ground let there be dew. 40And God did so that night: for it was dry upon the fleece only, and there was dew on all the ground.