Exodus 19:16
On the third day, when morning came, there was thunder and lightning. A thick cloud was upon the mountain, with a very loud trumpet blast, so that all the people in the camp trembled.

Exodus 19:19
And as the sound of the trumpet grew louder and louder, Moses spoke, and God answered him in the thunder.

Exodus 20:18
All the people witnessed the thunder and lightning, the sound of the trumpet, and the mountain in smoke. And when the people saw this, they trembled and stood at a distance.

Exodus 20:19
"Speak to us yourself and we will listen," they said to Moses. "But do not let God speak to us, or we will die."

Deuteronomy 4:11
You came near and stood at the foot of the mountain, a mountain blazing with fire to the heavens, with black clouds and deep darkness.

Deuteronomy 4:12
And the LORD spoke to you out of the fire. You heard the sound of the words, but saw no form; there was only a voice.

Deuteronomy 5:25
But now, why should we die? For this great fire will consume us, and we will die, if we hear the voice of the LORD our God any longer.

Deuteronomy 18:16
This is what you asked of the LORD your God at Horeb on the day of the assembly, when you said, "Let us not hear the voice of the LORD our God or see this great fire anymore, so that we will not die!"

Matthew 24:31
And He will send out His angels with a loud trumpet call, and they will gather His elect from the four winds, from one end of the heavens to the other.

Hebrews 12:25
See to it that you do not refuse Him who speaks. For if the people did not escape when they refused Him who warned them on earth, how much less will we escape if we reject Him who warns us from heaven?