"Right reaction will transform intended evil into good, not once but always, in every situation." (Paul E. Billheimer, The Mystery of His Providence, Page 94)
Among all others things, this book is about how God uses potential failures to shape us into the likeness of Christ.
Many people would be considered failures in the Bible included Jesus. As Jesus hung on the cross, they said, "he saved others, but he can't save himself" (See Matthew 27:42). However, we know Jesus conquered death, hell, the grave and stripped Satan of his power on the cross. Therefore, this potential failure was used by God to save us.
The story that the author relates to the most is the story of Joseph and how he responded to the various difficulties he had i.e. being sold by his brothers into slavery, being falsely accused of rape, being locked up in prison for 2 years, being abandoned by the butler who he interpreted a dream for. All the things that happened to Joseph was a recipe for being bitter, abandoning God, discouragement, etc. However, Joseph responded differently. He responded gracefully. It was almost like he knew God had a greater purpose for him. He had the dreams when he was younger and I believe he was holding to those dreams. By doing so, he saved the people of his day from great starvation and lack because he was obedient to his call and endured sorrows.
God uses all things to work for our good, even the bad things (See Romans 8:28). What was meant for evil toward us, will be turned around for our good.
We should take the attitude of Joseph and say, "You intended to harm me, but God intended it for good to accomplish what is now being done, the saving of many lives. (Genesis 50:20)