For many, the Christian life looks like this: You call out to God. Your problems get worse. You suffer and wait. Nothing changes. Author John S. Dickerson knows the feeling. A rare health condition drove him to examine the Bible's claim that "when I am weak, then I am strong." As a journalist, Dickerson has seen severe human suffering. As a pastor, he has comforted others through unimaginable grief. He wrote I Am Strong to give understanding, hope,...