Judges 5:5 - Matthew Poole's English Annotations on the Holy Bible

Melted, or flowed, with floods of water poured out of the clouds upon them, and from them flowing down in a mighty stream upon the lower grounds, and carrying down some part of the mountain with it, as is usual in excessive showers. She slides into the mention of another and a more ancient appearance of God for his people, to wit, in Sinai; it being usual in Scripture repetitions of former actions to put divers together into a narrow compass, and in few words. The sense is, No wonder that the mountains of the Amorites and Canaanites melted and trembled when thou didst lead thy people towards them; for even Sinai itself could not bear thy presence, but melted in like manner before thee. Or, as that Sinai did upon a like manifestation of thyself; so there is only a defect of the particle as, which I have showed to be frequent.