Oral gospel traditions called the M source for Matthew and the L source for Luke, which may have been a mix of written and oral material (see Two-source hypothesis). Most scholars believe that the author of John's gospel used oral and written sources different from those available to the Synoptic authors – a "signs" source, a "revelatory discourse" source, and others – although there are indications that a later editor of this gospel may have used Mark and Luke. Oral transmission may also be seen as a different approach to understanding the Synoptic Gospels in New Testament scholarship. Current theories attempt to link
God Is Not Great conceive, and bear a son" (see ), pointing out where the stories converge, Old Testament to New. Comparing the Testaments, he considers the New Testament "also a work of crude carpentry, hammered together long after its purported events, and full of improvised attempts to make things come out right". He points out that, while H. L. Mencken considered some of the New Testament events to be historically verifiable, Mencken maintained that "most of them ... show unmistakable signs of having been tampered with". Hitchens also outlines the inaccuracy in Luke's attempt to triangulate three world events of the time with