Paul says that, having this ministry by the mercy shown to him, he does not lose heart. He has renounced disgraceful, underhanded ways, refusing to practice cunning or to tamper with God's word, but by the open statement of the truth he commends himself to everyone's conscience in the sight of God. If his gospel is veiled, it is veiled to those who are perishing, whose minds the god of this world has blinded to keep them from seeing the light of the gospel of the glory of Christ, who is the image of God.
They do not proclaim themselves, but Jesus Christ as Lord, and themselves as servants for Jesus' sake. For God, who said, Let light shine out of darkness, has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ.
But we have this treasure in jars of clay, to show that the surpassing power belongs to God and not to us. Paul describes his life: afflicted in every way, but not crushed; perplexed, but not driven to despair; persecuted, but not forsaken; struck down, but not destroyed. They always carry in the body the death of Jesus, so that the life of Jesus may also be manifested in their bodies. Death is at work in them, but life in the Corinthians.
With the same spirit of faith, they believe and so they speak, knowing that he who raised the Lord Jesus will raise them also, and it is all for the Corinthians' sake, so that grace may overflow in thanksgiving. So they do not lose heart. Though the outer self is wasting away, the inner self is being renewed day by day. This light momentary affliction is preparing for us an eternal weight of glory beyond all comparison, as we look not to the things that are seen but to the things that are unseen, for the things that are seen are transient, but the things that are unseen are eternal.