Every Indian job-seeker knows the ritual: the file of certificates, the attested photocopies, the reference letter from a former employer, all carried to the interview in a plastic folder. Without the right papers, nobody will take you seriously. Some visiting teachers have arrived in Corinth with impressive letters of recommendation, and people are asking where Paul's are. His answer is almost playful: you want my certificate? You are it. The church itself — people whose lives were changed — is a letter anyone can read, written not with ink but with the Spirit, not on stone but on human hearts.
Where it sits in the story: Act 5 — the church living under what the prophets called the new covenant. Jeremiah had promised a law written on the heart and Ezekiel a heart of flesh in place of stone; Paul says that promise is now happening in Corinth. To explain it he goes back to Act 3, to Moses coming down from Sinai with his face shining, and reads that story as a window onto what the Spirit is now doing.
What this chapter is doing: To answer the demand for credentials by pointing to the Spirit's work in the Corinthians, and to describe Paul's ministry as belonging to a new covenant whose glory surpasses and outlasts even the glory given at Sinai.
- 3:1–6 — Does Paul need letters of recommendation? The Corinthians are his letter, known and read by everyone, written by the Spirit on hearts. His competence comes from God, who made him a minister of a new covenant — not of the written code, which kills, but of the Spirit, who gives life.
- 3:7–11 — The ministry carved on stone came with such glory that Israel could not look at Moses' face, even though that glory was fading. How much greater, then, is the glory of the Spirit's ministry, which brings righteousness and lasts.
- 3:12–18 — Moses veiled his face; Paul speaks boldly. A veil still lies over hearts when Moses is read, but whenever anyone turns to the Lord, the veil is removed. The Lord is the Spirit, and where the Spirit is, there is freedom; all of us, beholding his glory, are being transformed into his image.
Key verse: 2 Corinthians 3:18 · So what: Paul's answer to the credentials question is still pointed: the real proof of any ministry is not a title, a degree or a famous endorsement, but people genuinely changed. And his closing picture is gentle rather than dramatic — transformation 'from one degree of glory to another', slow and ongoing, the way a face comes to resemble what it looks at every day.