A Comparative Greek Concordance of the Synoptic Gospels
A Comparative Greek Concordance of the Synoptic Gospels by Elmar Camillo Dos Santos and Robert L. Lindsey (3 vols.; PDF Format).
An essential tool for studying the Synoptic Gospels and cracking the Synoptic Problem. Compiled by Elmar Camillo Dos Santos and edited by Robert L. Lindsey, this three volume concordance lists each instance of every word in the Synoptic Gospels and gives the Lukan, Matthean, and Markan parallels (if any). For a useful overview of how to use this concordance see R. Steven Notley’s JP article, “Book Review: Robert Lindsey’s A Comparative Greek Concordance of the Synoptic Gospels.” The JP post “Three Synoptic Studies Resources Now Free” also offers some helpful tips.
Three volumes, PDF format.