Judges 5:5 - Wesley's Explanatory Notes

Melted — Or, flowed, with floods of water powered out of the clouds upon them, and from them flowing down in a mighty stream upon the lower grounds, and carrying down part of the mountains with it. Sinai — She slides into the mention of a more ancient appearance of God for his people in Sinai; it being usual in scripture repetitions of former actions, to put divers together in a narrow compass. The sense is, No wonder that the mountains of the Amorites and Canaanites melted and trembled, when thou didst lead thy people toward them; for even Sinai itself could not bear thy presence, but melted in like manner before thee.