The narrator of the story in 2 Kings 25 may have witnessed the events described there, or may (like Luke, according to the introduction to his Gospel) have talked to people who witnessed the events or may have listened to the story that had been passed on for a generation or so. The author of Gen. 1 did not witness the events that are described and has not been able to talk to people who witnessed them or listen to a story passed down by people who did so (with the possible exception of 1:27–30).