And now that the cloud settled on Saint Antoine, which a momentary gleam had driven from his sacred countenance, the darkness of it was heavy—cold, dirt, sickness, ignorance, and want, were the lords in waiting on the saintly presence—nobles of great power all of them; but, most especially the last.
A Tale of Two Cities by Charles Dickens. Volume 1, chapter 5.
I'm confused about the bold part. I understand that by saying " his sacred countenance" he's referring to the saint whom the city is named after. But it's still not clear to me what he's trying to say.