I came to the conclusion the first reference was to spiritual light. All thru the Bible you have spiritual light and darkness called night and day.(EG the night comes when no man can work - Jesus speaking. Jesus again - we must do the works of God while it is day) You have motivated me - I'm going to take on some of those so called discrepancies in scripture. Can you give me links to those two guys challenging the word you mentioned. In the comments here will do - does not matter if they are not live. thanks