"A suit of funeral black"

“A RELIGION that merely dresses for church as it dresses for dinner, a religion that merely prays into a top-hat and calls a suit of funeral black its Sunday best—that does not express what is expressed either by a hermit or a hierarchy; does not express anything, except that its followers would have been equally contented with anything else. Whatever it is, the church of Christ must not merely be what some of my Anglican friends used humorously to call Mod. High. It must be very high, like the spire of Cologne cathedral or the tower of Salisbury; or it must be very low, like the catacombs or the cave of Bethlehem.”

~G.K. Chesterton: The Resurrection of Rome.