 His Evangelical religion was deeply woven into his life; he regularly worshipped at St. John's Chapel, Downshire Hill, in Hampstead, and was for more than 35 years a Sunday School teacher and superintendent there.He read Matthew Henry's (1662–1714) "Exposition of the Old and New Testaments"(1708–10) every day and always kept Sunday free of business.His fondness for incorporating into his designs improving mottoes, proverbs and biblical quotations perhaps expresses this aspect of him – 'Thwaitehead' the house he built for himself in Hampstead displayed his favourite, "God's Providence Is Mine Inheritance", while his own office bore the motto "Trust And Strive".After his success at Hildenborough Christian began work on "Illustrations of Skelton Church, Yorkshire", his only book, published in 1846.