Proverbs 12:16-19

The [arrogant] fool’s anger is quickly known [because he lacks self-control and common sense], But a prudent man ignores an insult. He who speaks truth [when he testifies] tells what is right, But a false witness utters deceit [in court]. There is one who speaks rashly like the thrusts of a sword, But the tongue of the wise brings healing. Truthful lips will be established forever, But a lying tongue is [credited] only for a moment.