Vangelo di Tommaso e Diatessaron, traiettorie parallele. Il Diatessaron e i problemi della ricerca.

The goal of this paper is to study the kind of relationship which links the Gospel of Thomas and the Diatessaron. This subject has been debated for a long time, since the discovery of the 'apocryphal' Gospel of Thomas, and has been very controversial. Scholars in fact disagree about this issue: some point to a direct relationship, a dependence of the Gospel of Thomas upon the Diatessaron or vice-versa; others instead deny a direct relationship and rather think to an indirect one. This kind of analysis is not easy because of the lack of an original of the harmony of Tatian. We can, in fact, reconstruct the text of the Diatessaron only through his many witnesses but this reconstruction is nevertheless very complex. This paper tries to show some examples of such a complex relationship: three cases in which we can clearly glimpse the connection which exists between the two texts. The analysis showed us that the relationship which does subsist between the Gospel of Thomas and the Diatessaron is not of a direct kind but rather they shared one common source, a gospel tradition with variant readings which probably was available in the canonical text of that time. [ABSTRACT FROM AUTHOR]