11 And ye came near and stood under the mountain; and the mountain burned with fire to the heart of heaven, with darkness, clouds, and obscurity.
Deuteronomy 4:11 Cross References - Darby
Exodus 19:16-18
16 And it came to pass on the third day, when it was morning, that there were thunders and lightnings and a heavy cloud on the mountain, and the sound of the trumpet exceeding loud; and the whole people that was in the camp trembled.
17 And Moses brought the people out of the camp to meet with God; and they stood at the foot of the mountain.
18 And the whole of mount Sinai smoked, because Jehovah descended on it in fire; and its smoke ascended as the smoke of a furnace; and the whole mountain shook greatly.
Exodus 20:18-19
Deuteronomy 5:23
23 And it came to pass, when ye heard the voice from the midst of the darkness, and the mountain burned with fire, that ye came near to me, all the heads of your tribes, and your elders;