Textual Criticism is the field of biblical study that conceptually follows the development of the Biblical canon. It attempts to ascertain the original wording of the text in situation when the very original manuscripts (autographs) were lost and only their copies are available, whereas there are variations among them. These discrepancies are assumed to result from copyists' errors.
Henry A. Virkler and Karelynne Gerber Ayayo  (2007). "1:Introduction to Biblical Hermeneutics", Hermeneutics: Principles and Processes of Biblical Interpretation, 2, Grand Rapids, Michigan: Bacer Academic, 17, 40. ISBN 978-0-8010-3138-0.
Craig L. Blomberg (1986 (Zondervan), 2005). "Four: The Legitimacy and Limits of Harmomnization", in D.A. Carson and J.D. Woodbridge: Hermeneutics, Authority, and Canon. Eugene, Oregon: Wipf and Stock Publishers, 141. ISBN 1-59752-118-3.