Exodus 20:21

20:21 The people kept their distance, but Moses drew near the thick darkness where God was.

Exodus 24:15-18

24:15 Moses went up the mountain, and the cloud covered the mountain. 24:16 The glory of the Lord resided on Mount Sinai, and the cloud covered it for six days. On the seventh day he called to Moses from within the cloud. 24:17 Now the appearance of the glory of the Lord was like a devouring fire on the top of the mountain in plain view of the people. 24:18 Moses went into the cloud when he went up the mountain, and Moses was on the mountain forty days and forty nights.

Leviticus 16:2

16:2 and the Lord said to Moses: “Tell Aaron your brother that he must not enter at any time into the holy place inside the veil-canopy in front of the atonement plate that is on the ark so that he may not die, for I will appear in the cloud over the atonement plate.

Deuteronomy 4:11

4:11 You approached and stood at the foot of the mountain, a mountain ablaze to the sky above it and yet dark with a thick cloud.

Deuteronomy 4:1

The Privileges of the Covenant

4:1 Now, Israel, pay attention to the statutes and ordinances I am about to teach you, so that you might live and go on to enter and take possession of the land that the Lord, the God of your ancestors, is giving you.

Deuteronomy 8:12

8:12 When you eat your fill, when you build and occupy good houses,

Psalms 18:8-11

18:8 Smoke ascended from his nose;

fire devoured as it came from his mouth;

he hurled down fiery coals.

18:9 He made the sky sink as he descended;

a thick cloud was under his feet.

18:10 He mounted a winged angel and flew;

he glided on the wings of the wind.

18:11 He shrouded himself in darkness,

in thick rain clouds.

Psalms 97:2

97:2 Dark clouds surround him;

equity and justice are the foundation of his throne.

Nahum 1:3

1:3 The Lord is slow to anger but great in power;

the Lord will certainly not allow the wicked to go unpunished.

The Divine Warrior Destroys His Enemies but Protects His People

He marches out in the whirlwind and the raging storm;

dark storm clouds billow like dust under his feet.

Hebrews 12:18

12:18 For you have not come to something that can be touched, to a burning fire and darkness and gloom and a whirlwind