Proverbs 17:27

One acquainted with knowledge is sparing his words, And the cool of temper is a man of understanding.

James 1:19

So then, my brethren beloved, let every man be swift to hear, slow to speak, slow to anger,

Proverbs 10:19

In the abundance of words transgression ceaseth not, And whoso is restraining his lips is wise.

Proverbs 14:29

Whoso is slow to anger is of great understanding, And whoso is short in temper is exalting folly.

Proverbs 15:28

The heart of the righteous meditateth to answer, And the mouth of the wicked uttereth evil things.

Proverbs 16:32

Better is the slow to anger than the mighty, And the ruler over his spirit than he who is taking a city.

Ecclesiastes 9:17

The words of the wise in quiet are heard, More than the cry of a ruler over fools.

James 3:2

for we all make many stumbles; if any one in word doth not stumble, this one is a perfect man, able to bridle also the whole body;

James 3:18

and the fruit of the righteousness in peace is sown to those making peace.

Treasury of Scripture Knowledge

Summary

He that hath knowledge spareth his words: and a man of understanding is of an excellent spirit.

General references

Bible References

Spareth

Proverbs 10:19
In the abundance of words transgression ceaseth not, And whoso is restraining his lips is wise.
Proverbs 15:28
The heart of the righteous meditateth to answer, And the mouth of the wicked uttereth evil things.
James 1:19
So then, my brethren beloved, let every man be swift to hear, slow to speak, slow to anger,
James 3:2
for we all make many stumbles; if any one in word doth not stumble, this one is a perfect man, able to bridle also the whole body;

An excellent spirit

Proverbs 16:32
Better is the slow to anger than the mighty, And the ruler over his spirit than he who is taking a city.
Ecclesiastes 9:17
The words of the wise in quiet are heard, More than the cry of a ruler over fools.
James 3:18
and the fruit of the righteousness in peace is sown to those making peace.

General references

Proverbs 21:23
Whoso is keeping his mouth and his tongue, Is keeping from adversities his soul.