Shared ground
Paul’s point is not only about lawsuits. He says the Corinthians have started doing the very harm he earlier said it would be better to suffer: wronging and cheating fellow believers (v. 8). That is the immediate problem he names.
He then widens the frame: people he calls “the unrighteous” will not “inherit the kingdom of God” (vv. 9–10). He warns against self-deception, and he gives a representative list of behaviors that fit an unjust way of life (sexual wrongdoing, idolatry, adultery, certain sexual behaviors, theft, greed, drunkenness, abusive speech, and exploitation).
Finally, he reminds them that the gospel has already marked a real change among them: “such were some of you,” but they have been washed, set apart, and justified through Jesus’ name and by God’s Spirit (v. 11). That reminder functions as the grounding for his warning.
Where interpretation differs (only where needed)
1) Is Paul talking about occasional failures or settled identity?
Some readers think Paul is describing people defined by these behaviors as their practiced way of life (a continuing pattern). Others think the warning can include those who commit such acts even if they are not “known for it,” because Paul does not explicitly add a qualifier like “habitually.”
2) What does “inherit the kingdom of God” mean here?
Some take it as a final, future share in God’s coming rule (end-time participation). Others read it more broadly as belonging to God’s people and sharing in the life of God’s reign already begun, with the future still in view.
3) How should the sexual terms be mapped to modern categories?
Many agree Paul condemns certain sexual behaviors, but readers differ on how the specific terms in v. 9 line up with modern identity categories and relationships. Some treat the English labels as fairly direct; others argue the ancient terms are narrower or target particular exploitative or culturally specific practices.
4) What does v. 11 say about change—completed break or new identity?
Some see v. 11 as pointing to a decisive, completed transition out of the listed ways. Others stress that Paul’s emphasis is on their new standing and identity (“washed…set apart…declared right”) as the basis for confronting ongoing problems in the church.
Why the disagreement exists
The passage uses short labels and a warning-list style rather than extended explanation, so readers must infer how broad each label is and how directly it applies. Also, “inherit the kingdom” can be heard as either strongly future-focused or as a broader way of talking about belonging to God’s reign. Finally, v. 11 stacks three past-tense statements about what God has done, which raises questions about how those statements relate to ongoing moral struggle in the community.
What this passage clearly contributes
Paul connects community harm (defrauding “brothers”) with the larger question of what kind of life belongs to God’s kingdom (vv. 8–10). He insists self-deception is a real danger when a community tolerates injustice. And he frames moral warning inside a gospel-shaped “before/after” story: some Corinthians truly came out of those ways, because God acted to wash, set apart, and declare them right in Jesus’ name and by God’s Spirit (v. 11).