Sources
Burridge, Richard A. Four Gospels, One Jesus?. Grand Rapids: William B. Eerdmans, 2005.
Male, Emile. The Gothic Image:religious art in france of the thirteenth century. New York: Harper & Row, 1972.
St. Irenaeus of Lyons (ca. 120-202 AD) - Adversus Haereses 3.11.8 http://www.newadvent.org/fathers/0103311.htm
St. Jerome http://www.ccel.org/ccel/schaff/npnf206.vii.iv.ii.html also have translation of part of latin text.
Augustine http://www.ccel.org/ccel/schaff/npnf106.vi.iv.vi.html
Here are a few verses for each that I thought kind of fit. It is a little harder for Luke than John. http://www.latinvulgate.com/ luke 18:16 21:19 7:47 19:10 john 1:1 1:4 5:26 6:38