'Darkness' in the Bible

And this is the message that we have heard from Him, and announce to you, that God is light, and darkness in Him is not at all;

if we may say -- 'we have fellowship with Him,' and in the darkness may walk -- we lie, and do not the truth;

again, a new command I write to you, which thing is true in him and in you, because the darkness doth pass away, and the true light doth now shine;

he who is saying, in the light he is, and his brother is hating, in the darkness he is till now;

and he who is hating his brother, in the darkness he is, and in the darkness he doth walk, and he hath not known whither he doth go, because the darkness did blind his eyes.