Deuteronomy 5:22
"The LORD declared these commands in a loud voice to your entire assembly on the mountain from out of the fire and dark clouds, and nothing more was added. He inscribed them on two tablets of stone and gave them to me.
Exodus 24:12
Then the LORD told Moses, "Go up to me on the mountain and stay there. I'll give you stone tablets with the instruction and law that I've written to teach the people."
Exodus 31:18
When he finished speaking with Moses on Mount Sinai, he gave him the two Tablets of the Testimony, tablets of stone written by the finger of God.
Exodus 19:18-19
Mount Sinai was completely enveloped in smoke because the LORD had come down in fire on it. Smoke went up from it like smoke from a kiln, and the whole mountain shook violently.
Deuteronomy 4:12-15
the LORD your God spoke from the midst of the fire. You heard the sound of words, but you saw no form; there was only a voice.
Deuteronomy 4:36
You have been made to hear his voice from heaven so you may be instructed. And he showed you his great fire here on earth, and you heard his voice from the middle of that fire.
Deuteronomy 5:4
The LORD spoke to you face to face on the mountain from the fire.