If you are interested in textual criticism, then you might be interested in these two new resources from Peter J. Gurry dealing with the Coherence-Based Genealogical Method (used in the NA28).

One is available now from Brill (click here): A Critical Examination of the Coherence-Based Genealogical Method in New Testament Textual Criticism

Peter Gurry_new text critical book

The other is being released next month, put out by SBL Press (available for pre-order on Amazon HERE): A New Approach to Textual Criticism: An Introduction to the Coherence-Based Genealogical Method (Gurry co-authored it with Tommy Wasserman)

Here is the blurb from Amazon:

An essential introduction for scholars and students of New Testament Greek

With the publication of the widely used twenty-eighth edition of Nestle-Aland’s Novum Testamentum Graece and the fifth edition of the United Bible Society Greek New Testament, a computer-assisted method known as the Coherence-Based Genealogical Method (CBGM) was used for the first time to determine the most valuable witnesses and establish the initial text. This book offers the first full-length, student-friendly introduction to this important new method. After setting out the method’s history, separate chapters clarify its key concepts such as genealogical coherence, textual flow diagrams, and the global stemma. Examples from across the New Testament are used to show how the method works in practice. The result is an essential introduction that will be of interest to students, translators, commentators, and anyone else who studies the Greek New Testament.


  • A clear explanation of how and why the text of the Greek New Testament is changing
  • Step-by-step guidance on how to use the CBGM in textual criticism
  • Diagrams, illustrations, and glossary of key terms