Exodus 19:16-18

CLV(i) 16 It came to be on the third day, at the coming of the morning, that there came to be sounds and flashes and a heavy cloud on the mount, and the sound of a trumpet, exceedingly steadfast. Hence all the people who were in the camp trembled. 17 Yet Moses brought the people forth from the camp to meet the One, Elohim. So they stationed themselves at the nether part of the mountain. 18 As for Mount Sinai, all of it smoked in view of the fact that Yahweh descended on it in fire; its smoke ascended as the smoke of a limekiln, and the entire mountain trembled exceedingly.