Q source
Oral transmission may also be seen as a different approach to understanding the Synoptic Gospels in New Testament scholarship. Current theories attempt to link the three synoptic gospels together through a common textual tradition. However, many problems arise when linking these three texts together (see the Synoptic problem). This has led many scholars to hypothesize the existence of a fourth document from which Matthew and Luke drew upon independently of each other (for example, the Q source). The Oral Transmission hypothesis based on the oral tradition steps away from this model, proposing instead that this common, shared tradition was transmitted orally rather than through a lost document.