Have you ever promised with your friend? Can you keep a promise?
Most people would agree that honesty is a moral value and very important in many aspects of life, especially in relationships between people. Without honesty most of the relationships, such as friendships, love -, family - or business-relationships, wouldn't work in the first place. There are many reasons why honesty is such an important issue.
Keeping a promise is an extension of honesty. In a love relationship, as well as in business one keeping a promise bounds the individuals and keeps the relationship up, whereby failing to do so, can crush and destroy the relationships. For example, if one person borrows money from another, no matter what the amount, the person who is giving the money trusts the other person's integrity under assumption based on a promise, that he or she will eventually get that money back. In case that doesn't happen, and there is no good reason besides the fact that the borrower was dishonest by giving his or her promise, the relationship will suffer.