What a bunch of irrelevant nonsense all the above is! Here is an idea. Find me any scholarly work (really, any reasonably serious work) on the subject of Jesus's life and mission that does not begin and end with the New Testament and the Gospels. Can you do it? If not, what does that tell you about the sources of our information? Does it help explain why you get 610 book results just searching the catalog of the Library of Congress all of which take the New Testament as the starting point? You will find such books as:
Personal name: Aus, Roger David, 1940-
Main title: Feeding the five thousand : studies in the Judaic background of Mark 6:30-44 par. and John 6:1-15 / Roger David Aus.
Published/Created: Lanham, Md. : University Press of America, c2010.
Description: xvii, 187 p. ; 23 cm.
Personal name: Miller, Stephen M., 1952-
Main title: The Jesus of the Bible / Stephen M. Miller.
Published/Created: Uhrichsville, Ohio : Barbour Pub., c2009.
Description: 379 p. : ill. (chiefly col.), col. maps ; 23 cm.
Keener, Craig S., 1960-
Main title: The historical Jesus of the Gospels / Craig S. Keener.
Published/Created: Grand Rapids, Mich. : William B. Eerdmans Pub. Co., 2009.
Description: xxxviii, 831 p. ; 25 cm.
Farmer, William Reuben.
Main title: Jesus and the gospel : tradition, Scripture, and canon / William R. Farmer.
Published/Created: Philadelphia : Fortress Press, c1982.
Description: xiv, 300 p. ; 24 cm.
McCormick, Scott, 1929-
Main title: Behold the man : re-reading Gospels, re-humanizing Jesus / Scott McCormick, Jr.
Published/Created: New York : Continuum, 1994.
Description: 216 p. ; 23 cm.
Here is one that should be of particular interest to some of you:
Finding the historical Jesus : rules of evidence / Bernard Brandon Scott, editor.
Published/Created: Santa Rosa, Calif. : Polebridge Press, c2008.
Description: xi, 93 p. ; 21 cm.
ISBN: 9781598150070 (alk. paper)
Links: Table of contents only
Even the debunkers start and stop with the Gospels!
The five Gospels : the search for the authentic words of Jesus : new translation and commentary / [edited] by Robert W. Funk, Roy W. Hoover, and the Jesus Seminar.
Published/Created: New York : Macmillan ; Toronto : Maxwell Macmillan Canada ; New York : Maxwell Macmillan International, c1993.
Description: xxii, 553 p. : ill., map ; 25 cm.
Now this has been an amusing but complete waste of my time, since it is unlikely that those of you who most need to understand what you don't know are also the ones who think they know it all. But hope springs eternal.