Letters of Jesus and Abgarus
- Quoted in Eusebius' Ecclesiastical History, book 1, chapter 13; for versions, see Ecclesiastical History (Eusebius)
- Quoted in "Legend of Abgar," in Catholic Encyclopedia, (ed.) by Charles G. Herbermann and others, New York: The Encyclopaedia Press (1913)
- "The Epistles of Jesus Christ and Abgarus King of Edessa", in The suppressed Gospels and Epistles of the original New Testament of Jesus the Christ (1863).
- The Letters of Christ and Abgarus, in The Apocryphal New Testament (1924) by M. R. James