The Third Epistle to the Corinthians is an early Christian text written by an unknown author claiming to be Paul the Apostle.
[2][1] The text is structured as an attempt to correct alleged misinterpretations of the earlier First and Second Epistles to the Corinthians, of which the author (usually called "pseudo-Paul") has become aware due to the (similarly pseudepigraphic) Epistle of the Corinthians to Paul, which is paired with Paul's response as a single correspondence.
3 Corinthians emphasizes the importance of the flesh: that the Incarnation of Jesus had been as a real flesh-and-blood person, rather than a divine apparition or spirit that only appeared to suffer.
While the epistle contains a number of Pauline themes and similar phrasings taken from First and Second Corinthians, it varies from Paul in ways difficult to square with his authorship.
Notably, Paul draws a sharp distinction in his undisputed letters between "flesh" (sarx) and "body" (soma).
To Paul, flesh is the negative aspects of human sin and temptation that are left behind; but the body of Christians will be resurrected.
But about the beginning of the fifth century the Syrian Church fell under the influence of the Greek, and in consequence the spurious letter gradually lost its canonical status.