'Dark' in the Bible

What I say to you in the dark, tell in the light, and what is whispered in your ear, proclaim from the housetops.

Then Jesus got up early in the morning when it was still very dark, departed, and went out to a deserted place, and there he spent time in prayer.

If then your whole body is full of light, with no part in the dark, it will be as full of light as when the light of a lamp shines on you."

So then whatever you have said in the dark will be heard in the light, and what you have whispered in private rooms will be proclaimed from the housetops.

got into a boat, and started to cross the lake to Capernaum. (It had already become dark, and Jesus had not yet come to them.)

Now very early on the first day of the week, while it was still dark, Mary Magdalene came to the tomb and saw that the stone had been moved away from the entrance.

Now this is what the horses and their riders looked like in my vision: The riders had breastplates that were fiery red, dark blue, and sulfurous yellow in color. The heads of the horses looked like lions' heads, and fire, smoke, and sulfur came out of their mouths.