This study is of the concept of atheotes ("godless") in antiquity in relation to Christianity.

The surviving text of two books of New Testament apocrypha ascribed to Peter

The relations of three pseudepigrapha of Cyprian and the Acts of Paul; an elegant piece of reasoning.

The sayings of Jesus not recorded in the Gospels, with an appendix on a new fragment from the Fayyum.

One of the first pieces of Christian Latin, a treatise on the evils of gambling and the role of the bishop in correcting them.

Four debates between the Christians and the Greeks on philosophy and theology;they come down to us among the works of Justin, but written by Diodorus of Tarsus.

Christian physicians in the early church, from Luke to the martyrs Cosmas and Damian

Adolf Harnack reconstructs the Greek translation of Tertullian, largely from quotations by Eusebius

Demonstration of the inauthenticity of the commentary on the Gospels ascribed to Theophilus of Antioch

A quarrelsome disputation between a Jew and a Christian over the Old Testament prophecies, with introduction, notes, and essays on the character and compostion of the work.

This volume examins the manuscript tradition, and the account of the works of the 2nd century apologists in the ancient church and the Middle Ages.

This short catalogue lists the heresies known on the Syrian frontier of the Roman Empire in the beginning of the fifth century.

As part of his work on Origen, Adolf Harnack covers the Greek patristic terms for rebirth and related concepts.

The remainder of Harnack's discussion of the homilies of Origen (on Ruth through the end of the Old Testament, and all of the New) and their influence on Christian exegesis is presented in this 2nd volume.

Harnack’s classic lecture on the relationship between history and Christianity has stood the test of time. Both the concepts of personality and history are closely examined. Harnack asserts that historical criticism causes no real damage to authentic Christianity.