God reveals Bible truths through life experience. Failure really is the best teacher. Pain motivates change like nothing else in our life seems to God comes to us in our darkest hours and reminds us of Bible truths we already know, or he leads us into new revelation. The Author of Psalm 119 wrote in verse 71, it was good for me to be afflicted so so that I might learn your decrees.
Out of his pain, he sought God, and God revealed something to him that he needed to know. Many of God's greatest lessons, like forgiveness, faith, patience, and perseverance can only be Learned through life experience.