Shared ground
Paul reacts with shock that believers are taking disputes with other believers to be decided in outside courts (v.1). His contrast is sharp: deciding matters “before the unrighteous” versus “before the saints” (v.1). That assumes the church is a real community with responsibility and some capacity to hear cases.
Paul’s reasoning depends on claims he expects them to already “know”: the saints will judge the world (v.2) and “we will judge angels” (v.3). On the basis of that future (or at least ultimate) role, he argues they are capable of handling “the smallest matters” and “things that pertain to this life” (vv.2–3). In v.4 he highlights the inconsistency of appointing judges who are “of no account in the assembly,” which fits his main complaint about seeking judgment from outside the church.
Where interpretation differs
Two main questions come up.
First, what exactly counts as the “smallest matters” and “things pertaining to this life” (vv.2–3). Many read Paul as talking about ordinary civil disputes between believers (money, property, business conflicts, slights), not serious crimes. Others think Paul’s language could cover a wider range of conflicts, though they still usually distinguish this from situations where public authorities must be involved for protection or safety.
Second, who are the people “of no account in the assembly” (v.4). Some take this to mean nonbelievers—outsiders to the gathered church—so the point is mainly about not outsourcing judgment to the world. Others take it as a jab at low-status believers inside the church, meaning: “Are you really appointing the people you treat as insignificant to decide these matters?” Either way, Paul is exposing a mismatch between the church’s identity and the way it is handling conflict.
Why the disagreement exists
Paul uses compressed, rhetorical language (“Don’t you know…?”) and big horizon claims (“judge the world,” “judge angels”) to argue for competence in everyday disputes. Because he does not list specific case types, readers must infer boundaries from the contrast between “smallest matters” and the larger judgment images, and from the wider flow into 1 Corinthians 6:5–8. Also, “unrighteous” could mean “nonbelievers” in general or could carry an added sense of “unjust” decision-making in the courts; the text itself does not spell out which nuance is primary.
What this passage clearly contributes
Explicitly, the passage states that some believers were taking other believers to outside courts, and Paul treats that as a serious contradiction of who they are (vv.1, 4). It also explicitly grounds his argument in a future destiny for “the saints” and for “we” to participate in judging (vv.2–3). The theological inference Paul presses is straightforward: if the community is destined for such weighty judgment roles, it should not be treated as unqualified to resolve comparatively small, everyday disputes. The church’s identity (“saints”) is not only personal holiness; it is also a corporate role and responsibility in how conflicts are handled (vv.1–4).