This history of early Christian creeds contains an up-to-date account of their origin and development from the credal texts in the New Testament to the fully fledged classical formulae of the 4th century. It includes the creeds' use and alteration in subsequent periods until the time of Charlemagne and the beginnings of the filioque controversy. In addition, the author provides a scholarly commentary on the most common ancient confessions: the Nicene Creed and the Apostles' Creed.