'Fleece' in the Bible

behold, I will put a fleece of wool on the threshing floor; if there be dew on the fleece only, and it be dry on all the ground, then shall I know that you will save Israel by my hand, as you have spoken."

It was so; for he rose up early on the next day, and pressed the fleece together, and wrung the dew out of the fleece, a bowl full of water.

Gideon said to God, "Don't let your anger be kindled against me, and I will speak but this once. Please let me make a trial just this once with the fleece. Let it now be dry only on the fleece, and on all the ground let there be dew."

God did so that night: for it was dry on the fleece only, and there was dew on all the ground.