What is the purpose of Paul's suffering according to 2 Corinthians 4:15?
According to 2 Corinthians 4:15, Paul's suffering was for the sake of others, so that the abundant grace reaching many would, through the thanksgiving of many, overflow to God's glory, not Paul's. Everything that happened to him served to bring glory to the God of heaven.
Les explains that everything that happened to Paul was for the sake of the Corinthians, so that the abundant grace might, through the thanksgiving of many, redound to God's glory, not Paul's. He emphasizes that Paul was not to be elevated to glory; he was a common human being like the rest of us whom God saw fit to use. All things were to bring glory to the God of heaven. Continuing in 2 Corinthians 4, Les notes that this is why they did not faint: though the outward man perishes, the inward man is renewed day by day. The light affliction, which is but for a moment, works a far more exceeding and eternal weight of glory. Believers look not at the seen things, which are temporal and earthly, but at the unseen things, which are heavenly.
For all things are for your sakes, that the abundant grace might through the thanksgiving of many redound to the glory of God.