It is the practice of the impertinent ever to answer by the opposite to what is said rightly, lest if they assent to the things asserted, they should seem inferior.… When wisdom reprimands sins by the mouth of the righteous, it sounds like superfluity of talkativeness to the ears of the foolish. For assertive people deem nothing right except what they themselves think, and they consider the words of the righteous to be idle to the degree that they find them to be different from their own notions.… As long as any one lets himself go in words, the gravity of silence being gone, he parts with the safekeeping of the soul. For this reason it is written, “And the work of righteousness, silence.” So Solomon says, “He who has no rule over his own spirit in talking is like a city that is broken down and without walls.” And he says again, “In the multitude of words sin is not lacking.” … the value of a true sentence is lost when it is not delivered under the keeping of discretion.… A true senten...
One addicted to much speaking fails entirely to keep on the straight path of righteousness, so the prophet testifies, saying … “The service of justice shall be quietness,” that is, he indicates that the righteousness of the mind is lacking where there is not restraint on immoderate speaking. - "Morals on the Book of Job 2.7.58"