Sentence:  To build a church for the admiration of "the man in the street", who sees it from outside, or of the tourist who pays it a passing visit, or of the artist, or of anyone else whatsoever except that of the faithful who use the church for prayer, the hearing of Mass, and the reception of the sacraments, is to commit a <WSD>solecism</WSD> in the liturgy of all the material arts. 
Meaning of the word marked with <WSD> tags:  A faux pas or breach of etiquette; a transgression against the norms of expected behavior.