This all-new edition of A Textual Commentary on the Greek New Testament uses the Greek text of the 29th edition of the Nestle-Aland Novum Testamentum Graece (NA29) and the 6th edition of the United Bible Societies' Greek New Testament (UBS6) and comments on all apparatus entries of UBS6 in concise and comprehensible language. The edition is also suitable for use with the Nestle-Aland, as the Nestle-Aland also contains all the apparatus entries of UBS6 (with a different selection of witnesses). In addition, a detailed introduction provides key information on New Testament textual tradition, basic principles of textual criticism, and guidelines for using the UBS Greek New Testament. The author is a member of the editorial committee for NA29 and UBS6 and is therefore ideally suited to explain the decisions made by the committee in its preparation of these critical editions.The 2025 version replaces Bruce M. Metzger's A Textual Commentary on the Greek New Testament, which has been regarded as the standard work for decades but is now outdated in terms of research history.