What are the best resources on explanation of the synoptic problem? I have read many Bible Dictionaries and Encyclopedias (Anchor Yale, HarperCollins, ISBE, Hastings, Dictionary of Jesus and the Gospels). I tried the search "Synoptic problem" and thought it would be specific enough as a search term to produce specific and relevant results I did not like the results. I am rethinking the Synoptic Problem from the Passion Narratives in the Gospel of Luke. Any suggestions?