John 11:9-10
Jesus answered, Are there not twelve hours in the day? If a man walk in the day, he stumbleth not, because he seeth the light of this world;
John 12:35
Jesus therefore said to them, Yet a little while is the light among you. Walk while ye have the light, that darkness may not overtake you; and he that walketh in the darkness knoweth not whither he goeth.
John 12:40
"He hath blinded their eyes, and hardened their heart; lest they should see with their eyes, and understand with their heart, and turn from their ways, and I should heal them."
1 John 2:11
but he that hateth his brother is in the darkness, and walketh in the darkness, and knoweth not whither he goeth, because the darkness hath blinded his eyes.