Actually, Saint Christopher is the patron saint of lost causes. That's why cops and nurses, particularly those that are Catholic, often recieve St. Christopher medals upon graduation from the Police Academy or Nursing School.
God allowed Satan to plague Job with many afflictions. Satan believed that Job would curse God, and turn away from Him if he was so afflicted.
Anyway, Job continued to serve God and worship Him even though he was losing everything. He even rebuked his wife when she advised him to "Curse God and die."
In the end his blessing/reward was that everything that he lost: His land, his children, his livestock was returned to him "sevenfold".
When you hear someone say "God takes care of his children. After all look at Job". That's what they mean.