LXX2012(i)
17 And Moses led the people forth out of the camp to meet God, and they stood by under the camp.
18 The mount of Sina was altogether on a smoke, because God had descended upon it in fire; and the smoke went up as the smoke of a furnace, and the people were exceedingly amazed.
19 And the sounds of the trumpet were waxing very much louder. Moses spoke, and God answered him with a voice.