Deuteronomy 4:11
ye came and stood also under the hill, and the hill burnt with fire: even unto the midst of heaven, and there was darkness, clouds and mist.
Deuteronomy 5:23
But as soon as ye heard the voice out of the darkness and saw the hill burn with fire, ye came unto me all the heads of your tribes and your elders:
Exodus 19:16-18
And the third day in the morning there was thunder, and lightning and a thick cloud upon the mount, and the voice of the horn waxed exceeding loud, and all the people that was in the host was afraid.
Exodus 20:18-19
And all the people saw the thunder and the lightning and the noise of the horn, and how the mountain smoked.
Hebrews 12:18-19
For ye are not come unto the mount that can be touched, and unto burning fire, nor yet to mist and darkness and tempest of weather,