Context: The Corinthian believers are told by Paul that the essence of faith is the belief, confirmed by many witnesses, that Christ rose from the dead and that all who trust Him will also be resurrected. The resurrected form of life will be different from the physical form; man will then be immortal and imperishable. The resurrection, says Paul, is the final victory over death:
So when this corruptible shall have put on incorruption, and this mortal shall have put on immortality, then shall be brought to pass the saying that is written, Death is swallowed up in victory. O death, where is thy sting? O grave, where is thy victory?