Deuteronomy 5:23

And when you heard the voice from the midst of the darkness, while the mountain was burning with fire, you approached me, all the leaders (heads) of your tribes and your elders;

Exodus 20:18-19

Now all the people witnessed the thunder and the flashes of lightning and the sound of the trumpet and the smoking mountain; and as they looked, the people were afraid, and they trembled [and moved backward] and stood at a [safe] distance.

Hebrews 12:18-21

For you have not come [as did the Israelites in the wilderness] to a mountain that can be touched and to a blazing fire, and to gloom and darkness and a raging windstorm,

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