2 Corinthians 4:12

So then death worketh in us, but life in you.

Paul is not here complaining to the effect that he suffers all of the hardships, and the Corinthians receive all of the benefits. He has reference to the causal effect of his persecutions with their result in many conversions. Paul's many escapes from death and all of the other providences which had preserved his life miraculously through so many dangers were a part of the irrefutable evidence that God was with him. There was no denying the fact, as pointed out by Tasker, that:

The power of the risen Jesus was being revealed here and now in his own body. The apostles were thus witnesses in deed as well as in word to the truth of their Lord's resurrection.[35]