
TheDiatessaron(c. 160-175) is the most prominent earlyGospel harmony; and was created byTatian, anearly ChristianAssyrian apologistand ascetic.Tatian sought to combine all the textual material he found in the four gospels-Matthew, Mark Luke, and John-into a single coherent narrative...

TheDiatessaronwas used as the standard Gospel text in the liturgy of at least some sections of theSyrian Churchfor possibly up to two centuries and was quoted or alluded to by Syrian writers.Ephrem the Syrianwrote a commentary on it, the Syriac original of which was rediscovered...