Judges 6:36-40 - Gideon Tests Yahweh With The Fleece
36 And Gideon said to God, If You will save Israel by my hand, as You have said, 37 behold, I will put a fleece of wool in the grain-floor. And if the dew is on the fleece only, and dry upon all the ground, then I shall know that You will save Israel by my hand, as You have said. 38 And it was so. For he rose up early in the morning and gathered the fleece together, and wrung the dew out of the fleece, a bowl full of water.
39 And Gideon said to God, Let not Your anger be hot against me, and I will speak but this once. I pray You, let me test but this once with the fleece. Let it now be dry only upon the fleece, and upon all the ground let there be dew. 40 And God did so that night. For it was dry upon the fleece only, and there was dew on all the ground.