Psalms 97:2

97:2 Dark clouds surround him;

equity and justice are the foundation of his throne.

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.

Joel 2:2

2:2 It will be a day of dreadful darkness,

a day of foreboding storm clouds,

like blackness spread over the mountains.

It is a huge and powerful army –

there has never been anything like it ever before,

and there will not be anything like it for many generations to come!