The Afterlife of Stars by Joseph Kertes

"'What I mean is, at what point did the Lord decide that grass would be green rather than Mondays being green?'
                 'Did you say Mondays?'
                 'I mean, having come upon the concept of colors, did he start out making everything green on Monday, say, then everything red on Tuesday, everything yellow on Wednesday, but I mean everything, like a baby God coloring over the lines?'
                 'A baby God?' the priest said."