Judges 6:36-38

New Century Version

³⁶ Then Gideon said to God, “You said you would help me save Israel. ³⁷ I will put some wool on the threshing floor. If there is dew only on the wool but all of the ground is dry, then I will know that you will use me to save Israel, as you said.” ³⁸ And that is just what happened. When Gideon got up early the next morning and squeezed the wool, he got a full bowl of water from it.