Matthew Poole and continuators on Judges 7:14

14 And his fellow answered and said, This is nothing else save the sword of Gideon the son of Joash, a man of Israel : for into his hand hath God delivered Midian and all his host.

As there are many examples of significant Dreams, given by God to Heathens, as Gen. 41. Dan. 2. and 4. so some of them had the gift of Interpreting Dreams; which they sometimes did by Study and Art, and sometimes by Divine direction in this case.