Matthew Poole and continuators on Judges 5:21

21 The River of Kishon swept them away, that ancient river ▪ the river Kishon. O my soul, thou hast troden down strength .

Which, though not great in it self, and therefore fordable, was now much swelled and increased by the foregoing Storm and Rain, as Iosephus affirms; and therefore drowned those who being pursued by the hand of God, and by the Israelites, were forced into it, and thought to pass over it, as they did before.

So called, either, First, in opposition to those Rivers which are of a later date, being made by the hand and art of Man. Or, Secondly, Because it was a River anciently famous for some remarkable Exploits, for which it was Celebrated by the ancient Poets or Writers, though not here mentioned.

i. e. Thou, O Deborah, though but a weak Woman, hast by Gods Assistance and Blessing upon thy Councels and Prayers subdued a potent Enemy. Such Apostrophes and abrupt Speeches are frequent in Poetical Scriptures.