Proverbs 12:6 (NKJV) — 6 The words of the wicked are, “Lie in wait for blood,” But the mouth of the upright will deliver them.
Words tell all. How is it possible to discern if people are wicked? Their conversation betrays them. They constantly discuss “getting even” with someone or taking advantage of someone. The theme of their conversation will be to “lie in wait for blood.”
How is it possible to discern if people are upright? Their conversation will reveal them also. The theme of their conversation will be how to rescue another or how to help some person in need. And their honest and proper speech will deliver them from much trouble.