Before a big exam, a good teacher sometimes says: do not wait for me to find your mistakes — sit down tonight and check your own work. It is a warning, but it is also a kindness, because the student who corrects himself does not have to be corrected in public. Paul ends 2 Corinthians in that spirit. He is coming for a third time, and he will deal firmly with anyone still refusing to change. The Corinthians have been demanding proof that Christ speaks through him. He turns the question round: examine yourselves, test whether you are in the faith. Then, having said the hard thing, he closes with one of the warmest blessings in the whole Bible.
Where it sits in the story: Act 5 — the church learning to govern itself under Christ. The long, stormy correspondence with Corinth ends here. The pattern that runs through Paul's defence — weakness and power, the cross and the resurrection — shapes even his warning. Soon he will visit Corinth in person (Acts 20:2–3), stay three months, and write from there his fullest statement of the gospel: the letter to the Romans.
What this chapter is doing: To close the letter with a firm but loving warning, to ask the Corinthians to test themselves rather than Paul, and to bless them in the name of the Lord Jesus, God and the Holy Spirit.
- 13:1–4 — This will be his third visit; every charge must be settled by two or three witnesses. Those who want proof of Christ speaking in him will have it. Christ was crucified in weakness but lives by God's power — and Paul shares both.
- 13:5–10 — Examine yourselves, Paul urges, to see whether you are in the faith. He prays they will do right even if he seems to fail, and writes now so that when he comes he need not be harsh, using authority given for building up, not tearing down.
- 13:11–14 — Final greetings: rejoice, aim for restoration, encourage one another, agree, live in peace, and the God of love and peace will be with you. Greet one another with a holy kiss. The grace of the Lord Jesus Christ, the love of God and the fellowship of the Holy Spirit be with you all.
Key verse: 2 Corinthians 13:14 · So what: It is easy to spend spiritual energy checking whether other people — especially leaders — are genuine. Paul does not forbid that, but he points the lamp inward first. And he shows that firmness and tenderness can sit in the same paragraph: the warning and the blessing come from the same love. Many churches still end worship with his closing words.