Matthew Poole and continuators on Judges 6:29

29 And they said one to another, Who hath done this thing? And when they enquired, and asked, they said, Gideon the son of Joash hath done this thing .

Which they might easily conjecture, partly by his known aversion from the Worship of Baal, and partly because no other person durst presume to do such a thing, but they might more certainly learn it from some of the persons imployed in it, who through fear or favour might inform them.