I have been discussing instances in the New Testament where letters appear to have been cut-and-pasted together.  The key example is 2 Corinthians, but one could make the case (and many have!) that something similar is true of Philippians.  Here is how I explain it in my book The New Testament:  A Historical Introduction to the Early Christian Writings.



The Unity of the Letter

The first two chapters of Philippians sound very much like a friendship letter written by Paul to his converts. The occasion of the letter is reasonably evident (see especially 2:25–30). The Philippians had sent to Paul one of their stalwart members, a man named Epaphroditus, for some reason that is not disclosed (until chap. 4). While there ministering to Paul, Epaphroditus was taken ill; the Philippians had heard of his illness and grew concerned. Epaphroditus in turn learned of their concern and became distraught over the anxiety that he had caused. Fortunately, his health returned, and he was now set to make his journey back home to Philippi. Paul wrote this letter to keep the Philippians informed of his situation and to express his pleasure that all had turned out well.

Paul sent the letter from prison (1:7). We do not know …

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