Out of heaven he let you hear his voice, that he might discipline you; and on earth he let you see his great fire, and you heard his words out of the midst of the fire.
And Mount Sinai was wrapped in smoke, because the Lord descended upon it in fire; and the smoke of it went up like the smoke of a kiln, and the whole mountain quaked greatly.
And the Lord said to Moses. “Lo, I am coming to you in a thick cloud, that the people may hear when I speak with you, and may also believe you for ever.” Then Moses told the words of the people to the Lord.
The glory of the Lord settled on Mount Sinai, and the cloud covered it six days; and on the seventh day he called to Moses out of the midst of the cloud.
See that you do not refuse him who is speaking. For if they did not escape when they refused him who warned them on earth, much less shall we escape if we reject him who warns from heaven.