The synoptic gospels (Matthew, Mark, Luke) stand in direct opposition to John. The 400 yrs. between Old and New Testaments is known as the Intertestamental Period (approx. 200BC - 200AD) This was the beginning of the Hellenistic-Judaism (Greeks/Jews) and the Septuagint, which is the Greek Old Testament.
All the oral gospel traditions were word of mouth, just like the “Gospel of Q” (meaning source ). It is based on speaking in parables and telling a story to illustrate a moral lesson.
The Jewish mysticism prophecies of the Kabbalah became associated with the occult and later changed to Cabal with a global agenda conspiracy. This scenario created a Cabal Catastrophe, which is equivalent to anonymous bulletin board postings in the modern era.