The following devotional is from Dr. David Jeremiah and Turning Point.

Rains of Repentance
No chastening seems to be joyful for the present, but painful; nevertheless, afterward it yields the peaceable fruit of righteousness.
Hebrews 12:11

Recommended Reading — Hebrews 12:7-11
Dr. Paul White, a missionary physician in East Africa, described a drought threatening his area. Day after day, the blazing sun beat down and the plants withered. The regular rains were months late. One day the chief visited the local clergyman, and Dr. White joined them. “Bwana, we have sinned,” said the chief. “We must ask God’s forgiveness and His help. Can we have next Sunday as a day of repentance and prayer for rain?”
The word went out and large numbers gathered. The African pastor preached a powerful sermon on repentance, and everyone united in earnest prayer. Within an hour, gentle rain was falling, and three inches followed within three days. 1
Every affliction isn’t necessarily an act of divine chastening, but we should bear this in mind — very often the Lord uses difficulty to discipline and deepen us. When facing a problem, ask, “What is the Lord trying to teach me?” Sometimes we think of discipline as being hurtful, but God’s discipline is helpful. It offers eternal benefits.

The godly have some good in them; therefore the devil afflicts them; and some evil in them, therefore God afflicts them.
Thomas Watson, Puritan writer

1Dr. Paul White, Doctor of Tanganyika (Grand Rapids: Eerdmans, 1955), 177-178.