The Doctrine of Addai, The Apostle is a book written by George Phillips and published in 1876. The book is a translation of the ancient Syriac text known as the Doctrine of Addai, which is a collection of teachings and stories about the apostle Addai, who is said to have been sent by Jesus to evangelize the city of Edessa in Mesopotamia. The text is considered to be one of the earliest Christian documents and provides insights into the early church...