Exodus 19:18

18 Forsooth all the hill of Sinai smoked, for the Lord had come down thereon in fire; and the smoke thereof went up as of a furnace, and all the hill was fearful; (And all of Mount Sinai smoked, for the Lord had come down on it in fire; and its smoke went up like that of a furnace, and all the mountain fearfully shook;)

Exodus 19:18 Meaning and 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 3:12-18 )

because the Lord descended upon it in fire;
in flaming fire, as the Targums, which set the mountain on fire, and caused this prodigious smoke; for if he, who is a consuming fire, but toucheth the hills and mountains, they smoke, ( Psalms 104:32 )

and the smoke thereof ascended as the smoke of a furnace
such an one as that which Abraham in vision saw, ( Genesis 15:17 )

and the whole mount quaked greatly;
to which circumstance Deborah refers in her song, when she speaks of mountains melting and flowing from before the presence of the God of Israel, and particularly of Sinai, ( Judges 5:4 Judges 5:5 ) , and the psalmist, who makes mention of the earth shaking, and the heavens dropping, and of Sinai being moved at his presence, ( Psalms 68:8 ) , it is probable there was an earthquake at this time, which sometimes attends thunders and lightnings, see ( Revelation 16:18 ) .

Exodus 19:18 In-Context

16 And now the third day was come, and the morrowtide was clear; and, lo! thunders began to be heard, and lightnings to shine, and a most thick cloud to cover the mountain; and the sounding of a clarion made noise full greatly, and the people dreaded, that was in the tents (and the sounding of a trumpet made a very great noise, and the people in their tents had great fear).

17 And when Moses had led them out into the coming of God, from the place of the tents, they stood at the roots of the hill. (And when Moses had led them out from the place of the tents to meet with God, they stood at the foot of the mountain.)

18 Forsooth all the hill of Sinai smoked, for the Lord had come down thereon in fire; and the smoke thereof went up as of a furnace, and all the hill was fearful; (And all of Mount Sinai smoked, for the Lord had come down on it in fire; and its smoke went up like that of a furnace, and all the mountain fearfully shook;)

19 and the sound of a clarion increased little and little, and it was holden forth longer (and longer). (And) Moses spake, and the Lord answered him (with a clap of thunder/by a voice),

20 and the Lord came down on the hill of Sinai, in that top of the hill, and he called Moses to the top thereof. And when he had gone up thither, (and the Lord came down on Mount Sinai, onto the top of the mountain, and he called Moses up to the top of it. And when he had gone up there,)