This monograph presents an entirely new solution to the synoptic problem. It demonstrates that the Acts of the Apostles functioned as the structure-giving hypotext for the Gospel of Matthew. Accordingly, the Gospel of Matthew is a reworking of not only the Gospel of Luke, but also, in a strictly sequential way, of the Acts of the Apostles. This strictly sequential, hypertextual dependence on Acts explains the Matthean relocations of the Marcan and Lucan material, numerous Matthean modifications thereof, and many surprising features of the Matthean Gospel. Critical explanations of such features, which are offered in this monograph, ensure the reliability of the new solution to the synoptic problem.