Judges 6:36

THE SIGN OF THE FLEECE

"And Gideon said unto God, If thou wilt save Israel by my hand, as thou hast spoken, behold I will put a fleece of wool on the threshing-floor; if there be dew on the fleece only, and it be dry upon all the ground, then shall I know that thou wilt save Israel by my hand, as thou hast spoken. And it was so; for he rose up early on the morrow, and pressed the fleece together, and wrung the dew out of the fleece, a bowlful of water. And Gideon said unto God, Let not thine anger be kindled against me, and I will speak but this once: let me make trial, I pray thee, but this once with the fleece; let it now be dry only upon the fleece, and upon all the ground let there be dew. And God did so that night: for it was dry upon the fleece only, and there was dew on all the ground."

This supernatural evidence that God was indeed with Gideon and that God would deliver Israel by his hand was more than sufficient, and the subsequent chapters will report the amazing events of that deliverance.

Boling has the following interesting paragraph on the "sign of the fleece."

With the physical properties of fleece lying overnight exposed on a bare rock, the differentials of condensation and evaporation are entirely understandable. Fishermen living on one of the streamless and springless desert islands have obtained sufficient water for their livelihood by spreading out fleece in the evening and wringing dew from them in the morning (S. Tolkowsky, Journal of the Palestine Oriental Society., 3,1923, pp. 197-199). The true miracle is the REVERSE of the process, and that is what young Gideon required.[23]