Integrity
There is no substitute for having the guts to keep your word. (Charles Swindoll, preacher and author)
It used to be that a man’s word was his bond. A handshake was all that was necessary to seal a deal. A person’s “Yes” meant yes. The test, of course, is not when you make the deal. The test comes when the hard times arrive, when it’s difficult to keep the promise. That’s when the honest person keeps his word.
It is better to say nothing than to make a promise and not keep it (Ecclesiastes 5:5).