Although his father was an Anglican vicar, Coleridge worked as a Unitarian preacher between 1796 and 1797. He eventually returned to the Church of England in 1814. His most noteworthy writings on religion are Lay Sermons (1817), Aids to Reflection (1825) and The Constitution of Church and State (1830).
Despite being mostly remembered today for his poetry and literary criticism, Coleridge was also (perhaps in his own eyes primarily) a theologian. His writings include discussions of the status of scripture, the doctrines of the Fall, justification and sanctification, and the personality and infinity of God. A key figure in the Anglican theology of his day, his writings are still regularly referred to by contemporary Anglican theologians. F. D. Maurice, F. J. A. Hort, F. W. Robertson, B. F. Westcott, John Oman and Thomas Erskine (once called the "Scottish Coleridge") were all influenced by him.