John Gills Exposition of the Bible Commentary - Exodus 19:18
And Mount Sinai was altogether on a smoke ,.... Not from nature, as volcanos, but for a reason after given; it seemed to be one large body of smoke, nothing else to be seen but smoke; an emblem of the darkness of the legal dispensation, which was full of obscure types and figures, of dark shadows and smoky sacrifices, to which the clear day, of the Gospel dispensation is opposed, see 2 Corinthians 3:12 . because the Lord descended upon it in fire ; in flaming fire, as the Targums,... read more
Matthew Henry's Complete Commentary - Exodus 19:16-25
Now, at length, comes that memorable day, that terrible day of the Lord, that day of judgment, in which Israel heard the voice of the Lord God speaking to them out of the midst of the fire, and lived, Deut. 4:33. Never was there such a sermon preached, before nor since, as this which was here preached to the church in the wilderness. For, I. The preacher was God himself (Exod. 19:18): The Lord descended in fire, and (Exod. 19:20), The Lord came down upon mount Sinai. The shechinah, or glory of... read more