Psalm 34: 13. Keep thy tongue from evil, and thy lips from speaking guile.
Guard with careful diligence that dangerous bodily member, the tongue, lest it utter evil, for that evil will recoil upon you, and mar the enjoyment of your life. Clean and honest conversation, by keeping the conscience at ease, promotes happiness, but lying and wicked talk stuffs our pillow with thorns, and makes life a constant whirlwind of fear and shame.
