'Dark' in the Bible

And at the sounding of the fourth angel, a third part of the sun, and of the moon, and of the stars was made dark, so that there was no light for a third part of the day and of the night.

And he made the great deep open and a smoke went up from it, like the smoke of a great oven; and the sun and the air were made dark because of the smoke.

And the fifth let what was in his vessel come out on the high seat of the beast; and his kingdom was made dark; and they were biting their tongues for pain.