At one time or another all of these people may have betrayed a trust, intentionally or not. In this world filled with lies and deceit, trust can be very hard to come by. If I'm ever asked to sum up my theology, this is my answer. These are really the only three things I can completely trust. I believe everything that comes your way in life is a lesson.
Nothing happens without a reason.
Whether it's a wonderful event, or a horrible one, there's a lesson to be learned in it. I've known people who get in viscious cycles because they refuse to learn a lesson from situations in their lives. Whenever I see a problem reoccur in my life, I try to find the lesson I've missed. When I identify it and learn it, the problem miraculously solves itself. I trust in lessons learned.