Exodus 20:18 - 20:21
18 And all the people perceived the thunder and the lightning flashes and the sound of the trumpet and the mountain smoking; and the people perceived it, and they shook and stood at a distance. 19 Then they said to Moses, “Speak to us yourself, and we will listen; but let not God speak to us, lest we die.” 20 And Moses said to the people, “Do not be afraid; for God has come in order to test you, and in order that the fear of Him may be with you, so that you may not sin.” 21 So the people stood at a distance, but Moses came near the dense gloom where God was.