'Gloomy' in the Bible

"Whenever you fast, don't be gloomy like the hypocrites, because they put on sad faces to show others they are fasting. I tell all of you with certainty, they have their full reward!

He asked them, "What are you discussing with each other as you're walking along?" They stood still and looked gloomy.

Therefore we regard the message of the prophets as confirmed beyond doubt, and you will do well to pay attention to it, as to a lamp that is shining in a gloomy place, until the day dawns and the morning star rises in your hearts.

These men are dried-up springs, mere clouds driven by a storm. Gloomy darkness is reserved for them.