What does the Bible say about the purpose of affliction?

Affliction, as described in Lamentations 3:19, is likened to 'wormwood and gall,' representing its bitterness. However, the Scriptures reveal that these trials are spiritually beneficial. Afflictions can purge the corrupt humors from the soul, combat pride, and combat spiritual deadness, leading to a more fruitful spiritual life. Much like the physical bitterness of wormwood, the bitterness of afflictions can facilitate growth and reliance upon God, ultimately refining believers into His image.