Words carry immeasurable significance. The universe was created with a word; Jesus healed and cast out demons with a word; rulers have risen and fallen by their words; Christians have worshiped through words of song, confession and preaching. Even in a technological age, politics, education, business and relationships center on words.

Since the tongue is such a powerful force, for good or for evil, the authors ask what homes, churches and schools would look like if its use were taken seriously. John Piper, Justin Taylor, Paul David Tripp and Sinclair B. Ferguson each contribute, which gives the book both pastoral and counseling angles on the same subject.