Exodus 19:16-17

19:16 On the third day in the morning there was thunder and lightning and a dense cloud on the mountain, and the sound of a very loud horn; all the people who were in the camp trembled. 19:17 Moses brought the people out of the camp to meet God, and they took their place at the foot of the mountain.

Deuteronomy 5:5

5:5 (I was standing between the Lord and you at that time to reveal to you the message of the Lord, because you were afraid of the fire and would not go up the mountain.) He said: