'In the Darkness' in the Bible

If I look for Sheol as my house, if I have spread my couch in the darkness,

Light dawns in the darkness for the upright, gracious, merciful, and righteous.

in the twilight, in the evening of the day, in the middle of the night and in the darkness.

"Therefore their way shall be to them as slippery places in the darkness: they shall be driven on, and fall therein; for I will bring evil on them, even the year of their visitation," says the LORD.

he reveals the deep and secret things; he knows what is in the darkness, and the light dwells with him.