Judges 6:33-40 - The Sign Of The Fleece
33 Then all the Midianites and the Amalekites and the children of the east assembled themselves together; and they crossed over, and encamped in the Valley of Jezreel.
34 But the Spirit of the LORD came on Gideon; and he blew a trumpet; and Abiezer was gathered together after him. 35 He sent messengers throughout all Manasseh; and they also were gathered together after him: and he sent messengers to Asher, and to Zebulun, and to Naphtali; and they came up to meet them.
36 Gideon said to God, "If you will save Israel by my hand, as you have spoken, 37 behold, I will put a fleece of wool on the threshing floor; if there is dew on the fleece only, and it is dry on all the ground, then shall I know that you will save Israel by my hand, as you have spoken." 38 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.
39 Gideon said to God, "Do not let your anger be kindled against me, and I will speak but this once. Please let me make one more test with the fleece; let it now be dry only on the fleece, and on all the ground let there be dew." 40 God did so that night, for it was dry on the fleece only, and there was dew all over the ground.