Now when all the people saw the thunder and the flashes of lightning and the sound of the trumpet and the mountain smoking, the people were afraid and trembled, and they stood far off.
#exodus 20:18 Yitro

The people saw the trumpet-noise of God's voice. What an awesome sight that must have been!

The fear of God takes two forms: Fear of God as your enemy and fear of God as your lawgiver. Will you fall away from him or fall on your face toward him?