Proverbs 16, NIV:
A gentle answer turns away wrath,
but a harsh word stirs up anger.
2 The tongue of the wise adorns knowledge,
but the mouth of the fool gushes folly.
3 The eyes of the Lord are everywhere,
keeping watch on the wicked and the good.
4 The soothing tongue is a tree of life,
but a perverse tongue crushes the spirit
* * *
7 The lips of the wise spread knowledge,
but the hearts of fools are not upright.