Focuses on early Christian reflection on Christ as God incarnate from the first century to ca. 450 CE.

Notes on contributors; Acknowledgments; Note on the texts and translations; Abbreviations; Series introduction; Introduction; Part I. The Beginnings of Christology: 1. Acension of Isaiah 6-11 (Ethiopic version); 2. The Gospel of Peter; 3. The Epistle of the Apostles; 4. The First Letter of Clement (selections); 5. Ignatius of Antioch, Letters (selections); 6. Epistle to Diognetus 1 and 7-12; 7. Justin Martyr, First Apology 23, 30-32, 46, 63 and Second Apology 10, 13; 8. Tatian, Address to the Greeks 4-7; 9. Odes of Solomon 7, 19, 41, and 42; 10. Treatise on Resurrection; 11. A Ptolemaic Theology as Recounted by Irenaeus of Lyons in Against Heresies 1.8.5; 12. Irenaeus of Lyons, Against Heresies (selections); Part II. Developing Christological Traditions: 13. Tertullian of Carthage, Apology 21; 14. Tertullian of Carthage, On the Flesh of Christ 1-16 and 24-25; 15. Tertullian of Carthage, Against Praxeas 1-4 and 27-30; 16. Origen of Alexandria, On First Principles 2.6; 17. Paul of Samosata, Selected Fragments; 18. Aphrahat, Demonstration 17: On the Son; 19. Hilary of Poitiers, On the Trinity 9.1-14; 20. Ephrem the Syrian, Hymns on Faith 4, 10, 24, 31, 36, 51, 54, 77, 78, and 79; Part III. Traditions of Pro-Nicene Christology: 21. Tome to the Antiochenes 7; 22. Athanasius of Alexandria, Christological Letters to Epictetus, Adelphius, and Maximus; 23. Apollinarius of Laodicea, Recapitulation; 24. Apollinarius of Laodicea, Selected Letters; 25. Apollinarius of Laodicea, On the Faith and the Incarnation; 26. Apollinarius of Laodicea, On the Body's Unity with the Divinity in Christ; 27. Apollinarius of Laodicea, Fragments of Other Writings; 28. Apollinarius of Laodicea, Fragmentary Writings against Diodore and Flavian; 29. Basil of Caesarea, Letters 261 and 262; 30. Basil of Caesarea, Homily on the Holy Birth of Christ; 31. Diodore of Tarsus, Selected Fragments; 32. Gregory of Nazianzus, Letter 101 to Cledonius; 33. Gregory of Nazianzus, Poems 1.1.10-11; 34. Gregory of Nyssa, Oration on the Savior's Nativity; 35. Theodore of Mopsuestia, On the Incarnation (fragments); 36. Augustine of Hippo, On Eighty-Three Different Questions. Number 80: Against the Apollinarians; 37. Augustine of Hippo, Letter 137; 38. The Leporius Dossier: Leporius, Statement of Amendment; Augustine of Hippo, Letter 219; John Cassian, On the Incarnation of the Lord, Book 1; 39. Theodoret of Cyrrhus, Exposition of the Orthodox Faith; Part IV. Controversy over Nestorius: 40. Eusebius of Dorylaeum, Protest; 41. Cyril of Alexandria, Second Letter to Nestorius; 42. Nestorius of Constantinople, Second Letter to Cyril; 43. Proclus of Constantinople, Homily on the Holy Virgin Theotokos; 44. Nestorius of Constantinople, Three Letters to Celestine of Rome; 45. John Cassian, On the Incarnation of the Lord against Nestorius 3.1-16 and 5.1-4; 46. Cyril of Alexandria, Third Letter to Nestorius; 47. Nestorius of Constantinople, Letter to John of Antioch; 48. Theodoret of Cyrrhus, Refutation of the Twelve Anathemas; 49. Acts of the Council of Ephesus (June-October, 431): Selected Proceedings; 50. Cyril of Alexandria, Letter of Reunion to John of Antioch; 51. Ibas of Edessa, Letter to Mari the Persian; 52. Cyril of Alexandria, First Letter to Succensus; 53. Cyril of Alexandria, Second Letter to Succensus; 54. Theodoret of Cyrrhus, Eranistes: Epilogue; Suggestions for further reading; Scriptural index.