Abraham at the DesiringGod blog revisits Pearls Before Breakfast:

Here's a clarification: I don't think it was actually wrong to be one of those who walked past without the least interest. It's no more wrong to ignore Mr. Bell and his violin than it is to ignore an old man with a 3-string guitar playing bad covers of Bob Dylan. My point was to draw a comparison between Bell and God--both creating beauty and being disregarded. It is only immoral to ignore the beauty of the latter.

Read the rest here.