The church in Corinth itself was the evidence that The Spirit was giving life.1. The Spirit wrote by means of Paul's words onto the hearts of the Corinthians. (v.1-3)2. The Spirit gave confidence to Paul in his calling. (v.4)3. The Spirit gave competence to Paul to serve in the new covenant. (v.5-6)How do we know that God is at work?In what way does God write upon human hearts? Jer. 32:33When do hearts change? Ezek. 36:26-27, Gal. 3:10-11,21What makes the new covenant better? Heb. 9:15, Rom. 8:3