 There were eight different versions of the script and not one of  them, including the shooting script, ever had anything about God  cleaning up at the end. Kevin Smith (I) (qv) had what he called an  epiphany at the last minute. There had been a number of delays in  shooting the scene, and the church eventually asked Smith to clean  up the street. He chose to immediately clean up the street and add  God cleaning up rather than disappoint the very accommodating  church.