Matthew 12:35
A good man out of the good treasure of his heart, bringeth forth good things. And an evil man out of his evil treasure, bringeth forth evil things.
Proverbs 10:20-21
An innocent tongue is a noble treasure; but the heart of the ungodly is nothing worth.
Proverbs 25:11-12
A word spoken in due season, is like apples of gold in a silver dish.
Matthew 13:52
Then said he unto them, "Therefore every scribe which is taught unto the kingdom of heaven, is like a householder, which bringeth forth, out of his treasure, things both new and old."
Colossians 4:6
Let your speech be always well favoured and be powdered with salt, that ye may know how to answer every man.
Psalm 37:30-31
The mouth of the righteous is exercised in wisdom, and his tongue talketh of judgment.
Proverbs 12:6
The talking of the ungodly is how they may lay wait for blood; but the mouth of the righteous will deliver them.
Proverbs 12:17-19
A just man will tell the truth, and show the thing that is right; but a false witness deceiveth.
Proverbs 15:4
A wholesome tongue is a tree of life; but he that abuseth it, hath a broken mind.
Proverbs 15:23
A joyful thing it is to a man, when his counsel is followed; and very pleasant is a word spoken in due season.
Proverbs 15:28
A righteous man museth in his mind how to do good; but the mind of the ungodly imagineth how he may do harm.
Proverbs 16:21-23
Whoso hath a wise understanding is called to counsel; but he that can speak fair, getteth more riches.
Matthew 12:34
O generation of vipers, how can ye say well, when ye yourselves are evil? For of the abundance of the heart, the mouth speaketh.
Ephesians 4:29
Let no filthy communication proceed out of your mouths: but that which is good to edify withal, when need is, that it may have favour with the hearers.
Colossians 3:16
Let the word of Christ dwell in you plenteously in all wisdom. Teach and exhort your own selves, in psalms, and hymns, and spiritual songs which have favour with them, singing in your hearts to the Lord.