I. First, promise keeping defines the type of person you really are.
II. Second, promise keeping raises your confidence and self respect level and at the same time enables you to influence others.
III. Third, promise keeping empowers you to persist and fulfill your commitments.
IV. Fourth, promise keeping creates expectations for others and causes a price you must pay if you fail to deliver.
V, Finally, promise keeping requires designing a system for delivery on the promises you have made.