In the previous section, we looked at the synoptic problem and found that the problem was a literary or linguistic problem, not one that was theological. We saw that there were similarities to explain between the various gospels of the first three, and also a number of differences to harmonize between these writings as well; and we looked at some of the proposed solutions to the problem as has been proposed by a variety of schools of thought. For example, we looked at the oral tradition theory; the fragmentary theory; the interdependence theory; the urevangelium theory; the documentary or source theory; as well as the formgeschichte theory. There is one additional one that one should consider, and that is one that is known as “redaction criticism” or “editorial criticism.” The advocates for this particular school of thought have included Günther Bornkamm—who has emphasized the book of Matthew; Willi Marxsen the Gospel of Mark; and Hans Conzelmann, the Gospel of Luke. These writers date from around the 1950’s when this particular school of thought became quite popular.