His views are presented scientifically in his
Evangelisch-protestantische Dogmatik (1826; 6th edition, 1870), the value of which "lies partly in the full and judiciously chosen historical materials prefixed to each dogma, and partly in the skill, caution and tact with which the permanent religious significance of various dogmas is discussed" (
Otto Pfleiderer). More popular in style is his
Gnosis: Oder evangelische Glaubenslehre, für die gebildeten in der Gemeinde, (volume 1, 1827; volume 2, 1828; volume 3, 1829; second edition in two volumes, 1869 & 1870). But his reputation rests chiefly on his treatment of church history in his
Kirchengeschichte, Lehrbuch zunächst für akademische Vorlesungen (1834, 12th edition, 1900; English translation, 1870). His biographical studies,
Franz von Assisi (1856; second edition, 1892),
Caterina von Siena (1864; second edition, 1892),
Neue Propheten (Die Jungfrau von Orleans, Savonarola, Thomas Münzer) are judicious and sympathetic. Other works are: •
Hutterus Redivivus, or, doctrine of the Evangelical Lutheran Church (1827; 12th edition, 1883), a work in which he sought to present the teaching of the Protestant church in such a way as
Leonhard Hutter would have reconstructed it, had he still been alive. •
Das Leben Jesu (1829; 5th edition, 1865; English translation, 1860); in an enlarged form,
Geschichte Jesu (second edition, 1891). •
Handbuch der protestantischen Polemik gegen die Römisch-katholische Kirche (1862; 7th edition, 1900; English translation, volume 1, volume 2, 1906). For his life, see his
Ideale und Irrtümer (1872; 5th edition, 1894) and
Annalen meines Lebens (1891); and for comparison —
Otto Pfleiderer, "The development of theology in Germany since Kant" (1890) and
Frédéric Lichtenberger, "History of German theology in the nineteenth century" (1889). ==References==