proverb says, "A soft answer turns away wrath." This makes us realize how influential a single word can be. A single good and affirmative word that makes a person happy is more valuable than gold. In order to speak words of value you have to discern the timing above all. That's because everything that happens has its own flow and the circumstances are always changing. Therefore, you have to speak good and affirmative words according to the time so that you may give the person strength and joy.
"A man has joy in an apt answer, and how delightful is a timely word!" (Proverbs 15:23)