A Christmas Journey Through the Four Agreements, by Don Miguel Ruiz, Week 1...Be Impeccable with your Word. The first and most important of The Four Agreements is be impeccable with your word. The word is your power of creation, and that power can be used in more than one direction. One direction is impeccability, where the word creates a beautiful story — your personal heaven on earth. The other direction is misuse of the word, where the word destroys everything around you, and creates your personal hell.