Psalm 37:30

The mouth of the righteous utters wisdom;
his tongue speaks what is just.

My mouth will tell about Your righteousness
and Your salvation all day long,
though I cannot sum them up.

Repeat them to your children. Talk about them when you sit in your house and when you walk along the road, when you lie down and when you get up.

Therefore, my tongue will proclaim
Your righteousness all day long,
for those who seek my harm
will be disgraced and confounded.

The lips of the righteous feed many,
but fools die for lack of sense.

The mouth of the righteous produces wisdom,
but a perverse tongue will be cut out.

The lips of the wise broadcast knowledge,
but not so the heart of fools.

A word spoken at the right time
is like gold apples on a silver tray.

Oil and incense bring joy to the heart,
and the sweetness of a friend is better than self-counsel.

A good man produces good things from his storeroom of good, and an evil man produces evil things from his storeroom of evil.

No foul language is to come from your mouth, but only what is good for building up someone in need, so that it gives grace to those who hear.

Your speech should always be gracious, seasoned with salt, so that you may know how you should answer each person.

Treasury of Scripture Knowledge

The mouth of the righteous speaketh wisdom, and his tongue talketh of judgment.