This morning I happend to run across Zacharias Ursinus’ discussion about affliction in his commentary on the Heidelberg Catechism. The entire section is helpful and worth reading. Here’s a small sample, one that I thought was especially edifying. I’ve edited a bit in light of the context to make it easier to read.
The godly are sometimes afflicted on account of sin, not for the purpose of making satisfaction to the justice of God, but that sin may be acknowledged by them, and removed [dealt with], through the cross. They are paternally chastised, that they may be led to a knowledge of their faults. These chastisements are to them sermons, and call to repentance. “When we are judged we are chastened of the Lord, that we should not be condemned with the world.” “It is good for me that I have been afflicted” (1 Cor. 11:32; Ps. 119:71). …He corrects and improves the character of the godly through the cross.
The godly are afflicted that we may be exercised and tried, that thus our faith, hope, patience, prayer, and obedience, may be strengthened and confirmed; or that we may have matter and occasion for exercising and proving ourselves, and that our faith, hope, and patience, may be made manifest both to ourselves and others. When all things go well, it is an easy thing for us to glory in regard to our faith; but in adversity, the grace or beauty of virtue becomes apparent. He that has not been tested by affliction, what knoweth he? “Experience works hope.” (Rom. 5:4.)