We all know people who have been made much meaner and more irritable and more intolerable to live with by suffering: it is not right to say that all suffering perfects. It only perfects one type of person ...... the one who accepts the call of God in Christ Jesus.
Oswald Chambers, Harry Verploegh (1990). “The Oswald Chambers Devotional Reader: 52 Weekly Themes”, Oliver-Nelson Books