"And we all, who with unveiled faces contemplate the Lord's glory, are being transformed into his image with ever-increasing glory, which comes from the Lord, who is the Spirit." (2 Corinthians 3:18)
Paul does not need letters of recommendation to the Corinthians or from them. They are themselves his letter, written on his heart, known and read by everyone. They are a letter of Christ, delivered by Paul, written not with ink but with the Spirit of the living God, not on tablets of stone but on tablets of human hearts. The allusion to Ezekiel 36:26 is deliberate: the new covenant promised by the prophets is the covenant of the Spirit written on the heart, and the Corinthian community is its living embodiment. Paul's competence as a minister comes not from himself but from God, who has made him a minister of a new covenant, not of the letter but of the Spirit, for the letter kills but the Spirit gives life.
If the ministry that brought death, engraved in letters on stone, came with glory such that the Israelites could not look at Moses' face because of its glory, how much more glorious is the ministry of the Spirit. Moses put a veil over his face so that the Israelites might not see the end of what was passing away. But whenever anyone turns to the Lord, the veil is taken away. Now the Lord is the Spirit, and where the Spirit of the Lord is, there is freedom. And we all, who with unveiled faces contemplate the Lord's glory, are being transformed into his image with ever-increasing glory, which comes from the Lord, who is the Spirit. The Catechism identifies this as the theology of sanctification: the Christian is not merely forgiven but progressively transformed into the image of Christ by the Spirit, from one degree of glory to another (CCC 1999).
Brothers and sisters, we are being transformed into his image with ever-increasing glory. This is not a process you can observe in yourself from day to day, any more than you can watch your hair grow. But it is happening, in every act of prayer, every reception of the sacraments, every choice to turn to the Lord instead of away. The veil is removed. Contemplate his glory. The contemplation is itself the transformation.
Lord God, write your law on our hearts by your Spirit. Remove the veil from our faces so that we may contemplate your glory and be transformed into the image of your Son, from glory to glory. Where the Spirit is, there is freedom. Fill us with your Spirit. Through Christ our Lord. Amen.