Redaction Criticism

Form criticism breaks a text into its small, originally oral units and studies their genres and settings, effectively analyzing the tradition the author received. Redaction criticism takes the next step and studies what the author did with that tradition, examining how the units were selected, arranged, connected, and altered to express the author's own theology. Redaction criticism arose partly as a corrective to form criticism's tendency to lose sight of the evangelists as authors, so the two are sequential stages: form criticism reconstructs the material, redaction criticism analyzes its editing.

Redaction criticism measures editorial activity as the difference between what an author inherited and what the author finally wrote, so it needs a credible reconstruction of the source to serve as the baseline. For the Synoptic Gospels the usual assumption that Matthew and Luke used Mark provides exactly this baseline, letting their changes to Mark be observed directly. Where no source can be recovered, the critic cannot tell which features are the author's own contribution and which were simply taken over, so the security of any redaction-critical conclusion depends on the strength of the underlying source-critical hypothesis.

The safeguard is consistency. A single alteration may be stylistic, accidental, or trivial, so redaction criticism looks for changes of the same theological tendency recurring across many independent passages. Only a pattern that points coherently in one direction is treated as evidence of deliberate intent, as in Conzelmann's demonstration that Luke's many small adjustments converge on a single view of salvation history. Disciplined practitioners resist building large theological claims on isolated edits and weigh whether a proposed tendency genuinely recurs rather than being read into the text.