Jesus himself was bitter when he said, "my God why have you abandoned me?" while being crucified on the cross. So it is a natural human tendency to be bitter in the face of pain and suffering. But like Jesus when he said, "It is finished, Father into thy hands I commend my spirit.", we must also...
When you are in pain or when you suffer physically, emotionally, psychologically or when problems come does this make you a bitter person or a better person?