Now Mount Sinai was completely covered with smoke because the LORD had descended on it in fire, and its smoke went up like the smoke of a great furnace, and the whole mountain shook violently.
TSK
TSK · Deuteronomy 4:33
Treasury of Scripture Knowledge references in NET.
The Altar The LORD said to Moses:“Thus you will tell the Israelites:‘You yourselves have seen that I have spoken with you from heaven.
But he added,“You cannot see my face, for no one can see me and live.”
The Narrative of the Sinai Revelation and Israel’s Response The LORD said these things to your entire assembly at the mountain from the middle of the fire, the cloud, and the darkness with a loud voice, and that was all he said. Then he inscribed the words on two stone tablets and gave them to me.
Who is there from the entire human race who has heard the voice of the living God speaking from the middle of the fire as we have, and has lived?
When Gideon realized that it was the LORD’s angel, he said,“Oh no! Sovereign LORD! I have seen the LORD’s angel face to face!”