Shared ground
Paul insists his sharp, extended speech has not been an attempt to “talk his way out” of accusations or to win the Corinthians’ approval (explicit, v.19). He frames his words as spoken with God as witness and “in Christ,” meaning he treats what he says as accountable to God and bound up with his relationship to Christ (explicit, v.19). He then states a clear aim: everything is for their “edifying,” their being built up rather than his self-protection (explicit, v.19).
Paul’s fears about his next visit are concrete and communal (explicit, vv.20–21). He worries about mutual disappointment (explicit, v.20), about a mix of relationship breakdowns (strife, jealousy, anger, factional groupings, reputation-attacks, puffed-up thinking, and disorder) (explicit, v.20), and about the personal pain of being “humbled” and mourning if many persist in moral wrongdoing without repentance (explicit, v.21).
Where interpretation differs
1) What “in Christ” adds to “in God’s sight.” Some read “in Christ” as mainly reinforcing sincerity: Paul speaks under God’s gaze as a Christ-aligned messenger (inference from v.19). Others hear more: that Paul’s speech participates in Christ’s authority and represents Christ’s interests in a heightened way, not merely Paul’s own (inference from v.19).
2) What Paul expects if he is “found” undesirable. Some understand the passage as primarily emotional and relational: Paul fears an ugly meeting marked by conflict and grief, without specifying what he will do (explicit fears; limited inference). Others connect it closely with the next chapter’s warnings and think “found… as you don’t desire” implies a real possibility of severe confrontation and discipline on arrival (inference that leans on nearby context, not stated here).
3) What “my God would humble me before you” looks like. Some take “humble” as Paul’s shame and sorrow at seeing the church’s condition—his ministry being publicly pained or discredited by their ongoing failures (inference from v.21). Others take it more as God arranging circumstances that put Paul in a low position before them (still not defined; inference from v.21).
Why the disagreement exists
Paul uses compact phrases (“in Christ,” “humbled before you,” “found… as you don’t desire”) without spelling out mechanisms. Readers must decide how much to supply from the broader letter (especially the coming-visit language in 13:1–2) versus limiting conclusions to what is directly named here.
What this passage clearly contributes
It portrays apostolic correction as accountable to God, oriented toward the church’s upbuilding, and emotionally costly when a community fractures (explicit). It also shows that Paul treats persistent relational chaos and ongoing sexual wrongdoing as serious threats to the health of the church, and that “repentance” is the expected change of course rather than mere regret (explicit that they “have not repented,” v.21). The passage highlights how leadership credibility, community unity, and moral conduct are intertwined in Corinth’s situation (inference grounded in the linked lists of vv.20–21).