The mountains melted from before the Lord,.... The inhabitants of them, through fear, the Lord going before Israel in a pillar of cloud and fire, and delivering mighty kings and their kingdoms into their hand:

even that Sinai from before the Lord God of Israel; or, "as that Sinai", the note of similitude being wanting; and the sense is, the mountains melted, just as the famous mountain Sinai in a literal sense did, when it trembled and quaked at the presence of God on it; the tokens of it, the fire and smoke, thunders, lightnings, and tempests there seen and heard; and which being observed, would call to mind the benefit Israel then received, which required praise and thankfulness, as well as would serve to express the awe and reverence of God due unto him.

The mountains melted from before the LORD, even that Sinai from before the LORD God of Israel.

5:5 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.

melted: Heb. flowed

5:1-5. No time should be lost in returning thanks to the Lord for his mercies; for our praises are most acceptable, pleasant, and profitable, when they flow from a full heart. By this, love and gratitude would be more excited and more deeply fixed in the hearts of believers; the events would be more known and longer remembered. Whatever Deborah, Barak, or the army had done, the Lord must have all the praise. The will, the power, and the success were all from Him.