St. Clement's epistle, written c. 96, is called the first epistle, and is a model of a pastoral letter. The epistles of St. Ignatius, Bishop of Smyrna at the beginning of the second century, are addressed to six Christian communities.
The Didache or The Teaching of the Twelve Apostles, probably written before the end of the first century, purports to be an instruction based on sayings of the Lord and given by the Twelve Apostles to pagans who wished to become Christians.The Epistle of Barnabas is a homily on the mistaken Judaistic conception of the Old Testament.The Epistles consist of a covering note and a letter, which is an exhortation to the Philippians on Christian life in general. The Martyrdom of St. Polycarp is the st...