Shared ground
Paul treats judging and despising fellow believers as out of place because the people involved are "brothers"—members of the same family—and because God is the one before whom all will finally stand (textual claim). The passage pictures a universal future accountability: "we will all stand" before God’s tribunal (textual claim), and Scripture is cited to reinforce that God’s authority is recognized by "every" person (textual claim). The conclusion is individual: each person gives an account of himself to God (textual claim).
This sets a theological baseline: ultimate evaluation belongs to God, not to other believers. The passage does not deny that communities make judgments in some practical sense; it targets the posture of treating oneself as another believer’s final evaluator.
Where interpretation differs
Some readers emphasize that Paul says "judgment seat of Christ" (v.10 in many English Bibles) and take the point to be a distinct future assessment carried out specifically by Christ. Others note that some manuscripts read "judgment seat of God" and argue that Paul’s emphasis is simply God’s final tribunal, with no separate idea beyond God judging (interpretive pressure point).
Another difference is how people understand "every tongue will confess." Some take it mainly as worshipful praise and open acknowledgment of God’s lordship. Others take it as compelled admission—still an acknowledgment, but not necessarily joyful (interpretive pressure point).
Why the disagreement exists
The first difference exists because of a wording question in the manuscripts (“of Christ” vs “of God”), and because Paul immediately quotes a Scripture where the Lord speaks and concludes with "to God" (vv.11–12). The second difference exists because "confess" can describe both thankful praise and straightforward acknowledgment, and the passage itself does not specify the emotional tone.
What this passage clearly contributes
The text provides a strong reason for Paul’s call for mutual restraint in disputed matters in Romans 14: accountability is universal ("we all"), personal ("each one"), and directed to God rather than sideways toward other believers. By grounding that claim in Scripture (“it is written”), Paul frames God’s right to receive final acknowledgment and evaluation as comprehensive: every knee and every tongue. The passage therefore supports the larger argument that status-ranking and condemnatory evaluation inside the church do not match the shared reality of God’s coming judgment.