'Murky' in the Bible

“I clothe the heavens with the blackness [of storm clouds]And make sackcloth [of mourning] their clothing.”

and in the morning, 'It will be rough weather to-day, for the sky is red and murky.' You learn how to distinguish the aspect of the heavens, but the signs of the times you cannot.

Moreover, we possess the prophetic word as an altogether reliable thing. You do well if you pay attention to this as you would to a light shining in a murky place, until the day dawns and the morning star rises in your hearts.