Now Mount Sinai was completely enveloped in smoke, because the Lord had come down upon it in fire. The smoke rose from it as though from a kiln, and the whole mountain trembled violently.
The Lord said to Moses: I am coming to you now in a dense cloud, so that when the people hear me speaking with you, they will also remain faithful to you. When Moses, then, had reported the response of the people to the Lord,
The glory of the Lord settled upon Mount Sinai. The cloud covered it for six days, and on the seventh day he called to Moses from the midst of the cloud.
See that you do not reject the one who speaks. For if they did not escape when they refused the one who warned them on earth, how much more in our case if we turn away from the one who warns from heaven.