Psalm 37:30

The mouth of a righteous man, softly uttereth wisdom, and, his tongue, speaketh justice:

Psalm 71:15

My month, shall relate thy righteousness, All the day, thy deliverance, For I know not the numbers.

Deuteronomy 6:7-9

and thou shalt impress them upon thy sons, and shalt speak of them, - when thou sittest in thy house and when thou walkest by the way, and when thou liest down and when thou risest up;

Psalm 71:24

Even my tongue, all the day, shall softly utter thy righteousness, For they have turned pale - for they have blushed, Who were seeking my hurt.

Proverbs 10:21

The lips of the righteous, feed multitudes, but, the foolish, for lack of sense, shall die.

Proverbs 10:31

The mouth of the righteous, beareth the fruit of wisdom, but, a perverse tongue, shall be cut off.

Proverbs 15:7

The lips of the wise, scatter abroad knowledge, but, the heart of dullards, is not right.

Proverbs 25:11-13

Golden fruit in figured silver baskets, is a word spoken on fitting occasion.

Proverbs 27:9

Oil and perfume, rejoice the heart, the sweetness of one's friend, more than fragrant wood.

Matthew 12:35

The good man, out of the good treasure, putteth forth, good things; and, the evil man, out of the evil treasure, putteth forth, evil things.

Ephesians 4:29

Let, no putrid discourse, out of your mouth, be going forth, but if anything is good - suited to the needful upbuilding, - that it may give benefit unto them that hear;

Colossians 4:6

Your discourse being always with benefit, with salt, seasoned, - that ye may know how it behoveth you, unto each one, to be making answer.

Treasury of Scripture Knowledge

Summary

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

Bible References

General references

Psalm 71:15
My month, shall relate thy righteousness, All the day, thy deliverance, For I know not the numbers.
Deuteronomy 6:7
and thou shalt impress them upon thy sons, and shalt speak of them, - when thou sittest in thy house and when thou walkest by the way, and when thou liest down and when thou risest up;
Proverbs 10:21
The lips of the righteous, feed multitudes, but, the foolish, for lack of sense, shall die.
Proverbs 15:7
The lips of the wise, scatter abroad knowledge, but, the heart of dullards, is not right.
Proverbs 25:11
Golden fruit in figured silver baskets, is a word spoken on fitting occasion.
Proverbs 27:9
Oil and perfume, rejoice the heart, the sweetness of one's friend, more than fragrant wood.
Matthew 12:35
The good man, out of the good treasure, putteth forth, good things; and, the evil man, out of the evil treasure, putteth forth, evil things.
Ephesians 4:29
Let, no putrid discourse, out of your mouth, be going forth, but if anything is good - suited to the needful upbuilding, - that it may give benefit unto them that hear;
Colossians 4:6
Your discourse being always with benefit, with salt, seasoned, - that ye may know how it behoveth you, unto each one, to be making answer.