Deuteronomy 4:33
Has a people ever heard the voice of God speaking out of the fire, as you have, and lived?

Exodus 19:9, 19
The LORD said to Moses, "Behold, I will come to you in a dense cloud, so that the people will hear when I speak with you, and they will always put their trust in you." And Moses relayed the words of the people to the LORD. . . .

Exodus 20:18-22
All the people witnessed the thunder and lightning, the sound of the trumpet, and the mountain in smoke. And when the people saw this, they trembled and stood at a distance. . . .

Exodus 24:16
and the glory of the LORD settled on Mount Sinai. For six days the cloud covered it, and on the seventh day the LORD called to Moses from within the cloud.

Nehemiah 9:13
You came down on Mount Sinai, and spoke to them from heaven. You gave them just ordinances, true laws, and good statutes and commandments.

Hebrews 12:18, 25
For you have not come to a mountain that can be touched and that is burning with fire; to darkness, gloom, and storm; . . .