Proverbs 15:2

The tongue of the wise commends knowledge, but the mouths of fools pour out folly.

Proverbs 12:23

A prudent man conceals knowledge, but the heart of fools proclaims folly.

Proverbs 13:16

In everything the prudent acts with knowledge, but a fool flaunts his folly.

Proverbs 15:28

The heart of the righteous ponders how to answer, but the mouth of the wicked pours out evil things.

Psalm 45:1

My heart overflows with a pleasing theme; I address my verses to the king; my tongue is like the pen of a ready scribe.

Psalm 59:7

There they are, bellowing with their mouths with swords in their lips-- for "Who," they think,"will hear us?"

Proverbs 15:23

To make an apt answer is a joy to a man, and a word in season, how good it is!

Proverbs 16:23

The heart of the wise makes his speech judicious and adds persuasiveness to his lips.

Proverbs 25:11-12

A word fitly spoken is like apples of gold in a setting of silver.

Ecclesiastes 10:12-13

The words of a wise man's mouth win him favor, but the lips of a fool consume him.

Isaiah 50:4

The Lord GOD has given me the tongue of those who are taught, that I may know how to sustain with a word him who is weary. Morning by morning he awakens; he awakens my ear to hear as those who are taught.

Treasury of Scripture Knowledge

Summary

The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.

Poureth

Bible References

Tongue

Proverbs 15:23
To make an apt answer is a joy to a man, and a word in season, how good it is!
Proverbs 12:23
A prudent man conceals knowledge, but the heart of fools proclaims folly.
Proverbs 13:16
In everything the prudent acts with knowledge, but a fool flaunts his folly.
Proverbs 16:23
The heart of the wise makes his speech judicious and adds persuasiveness to his lips.
Proverbs 25:11
A word fitly spoken is like apples of gold in a setting of silver.
Psalm 45:1
My heart overflows with a pleasing theme; I address my verses to the king; my tongue is like the pen of a ready scribe.
Ecclesiastes 10:12
The words of a wise man's mouth win him favor, but the lips of a fool consume him.
Isaiah 50:4
The Lord GOD has given me the tongue of those who are taught, that I may know how to sustain with a word him who is weary. Morning by morning he awakens; he awakens my ear to hear as those who are taught.

Poureth

Psalm 59:7
There they are, bellowing with their mouths with swords in their lips-- for "Who," they think,"will hear us?"

General references

Proverbs 14:33
Wisdom rests in the heart of a man of understanding, but it makes itself known even in the midst of fools.
Proverbs 17:28
Even a fool who keeps silent is considered wise; when he closes his lips, he is deemed intelligent.
Matthew 15:18
But what comes out of the mouth proceeds from the heart, and this defiles a person.

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.