Deuteronomy 5:22-23

22These are the commands that the Lord spoke to you. You were all there together at the mountain. He spoke with a loud voice from the middle of a great fire. There was a cloud and it was very dark. He gave only those commands. Then he wrote them on two flat stones and he gave them to me.

23The mountain was burning with fire and you heard God's voice speak from the darkness. Then the leaders and older men of your tribes came to speak to me.