to pull someone up short with the sting of being in the wrong, or to be pulled up short that way
The picture under this word is a turn. It is built from a verb meaning "to turn" plus a word meaning "in", and the oldest use is physical, turning about or turning your back. Applied to a person it means turning someone in on himself, so that he has to stop and look at what he has done. That is why the shame it names is not simple embarrassment. It is a forced second look at yourself.
Paul uses it in both directions. He can be the one applying the pressure, and he can hope the pressure lands on someone else. In 1 Corinthians 4:14 he says plainly that shaming the Corinthians is not what he is after, even though the letter has just cut close to the bone. In 2 Thessalonians 3:14 he does aim for it, telling the church to keep their distance from a member who ignores the instructions, so that the man will feel it.
What keeps this from being cruelty is where it points. The shame is meant to move someone, not to flatten them, and the very next line in 2 Thessalonians tells the church not to treat the man as an enemy but to warn him as a brother. Titus 2:8 turns the same thing outward: clean and honest speech leaves a hostile critic with nothing to attack, and the discomfort lands on him instead.
Two neighboring Greek words mark the edges of this one:
Nuances
Whether Paul at 1 Corinthians 4:14 denies any intention to shame the Corinthians, or only denies that shaming is his main aim.
- contestedThe denial is genuine in tone: Paul writes to admonish as a father, not to shame, however sharply the preceding irony stings.; Gordon D. Fee, The First Epistle to the Corinthians, New International Commentary on the New Testament, on 1 Corinthians 4:14; Anthony C. Thiselton, The First Epistle to the Corinthians, New International Greek Testament Commentary, on 1 Corinthians 4:14; Margaret M. Mitchell, Paul and the Rhetoric of Reconciliation (1991)
- contestedThe not-X-but-Y construction means "not primarily X", so Paul does intend a formative shame, subordinated to the larger aim of correcting them.; Te-Li Lau, Defending Shame: Its Formative Power in Paul's Letters (Baker Academic, 2020)