Death is at work
But life is
ὥστε ὁ θάνατος ἐν ἡμῖν ἐνεργεῖται, ἡ δὲ ζωὴ ἐν ὑμῖν.
Paul said that death (ὥστε ὁ θάνατος) is at work in us (ἐν ἡμῖν ἐνεργεῖται), but life is (ἡ δὲ ζωὴ) in you (ἐν ὑμῖν). Paul indicated that his sacrifices were united with Jesus, so that they would get blessings. Thus, he was daily dying in his work, so that these Corinthians would have life. Paul was willing to die so that they could have eternal life. Are you willing to die to have eternal life?