Judges 6:37-40 NIV

37 look, I will place a wool fleece1 on the threshing floor.2 If there is dew only on the fleece and all the ground is dry, then I will know3 that you will save Israel by my hand, as you said."

References for Judges 6:37

38 And that is what happened. Gideon rose early the next day; he squeezed the fleece and wrung out the dew--a bowlful of water.
39 Then Gideon said to God, "Do not be angry with me. Let me make just one more request.4 Allow me one more test with the fleece. This time make the fleece dry and the ground covered with dew."

References for Judges 6:39

40 That night God did so. Only the fleece was dry; all the ground was covered with dew.5

References for Judges 6:40