Isaiah 8:20 To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
Isaiah 9:2 The people that walked in darkness have seen a great light: they that dwell in the land of the shadow of death, upon them hath the light shined.
John 11:9 Jesus answered, Are there not twelve hours in the day? If any man walk in the day, he stumbleth not, because he seeth the light of this world.
John 11:10 But if a man walk in the night, he stumbleth, because there is no light in him.
John 12:35 Then Jesus said unto them, Yet a little while is the light with you. Walk while ye have the light, lest darkness come upon you: for he that walketh in darkness knoweth not whither he goeth.