Exodus 20:18-21

All the people, experiencing the thunder and lightning, the trumpet blast and the smoking mountain, were afraid—they pulled back and stood at a distance. They said to Moses, “You speak to us and we’ll listen, but don’t have God speak to us or we’ll die.” Moses spoke to the people: “Don’t be afraid. God has come to test you and instill a deep and reverent awe within you so that you won’t sin.” The people kept their distance while Moses approached the thick cloud where God was.