Proverbs 17:27

He who has knowledge spares his words, and a man of understanding is of an excellent spirit.

James 1:19

Therefore, my beloved brethren, let every man be quick to hear, slow to speak, slow to wrath;

Proverbs 10:19

In the multitude of words there is no lack of rebellion, but he that refrains his lips is wise.

Proverbs 14:29

He that is slow to wrath is of great intelligence, but he that is short of spirit exalts folly.

Proverbs 15:28

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

Proverbs 16:32

He that is slow to anger is better than the mighty, and he that rules his spirit than he that takes a city.

Ecclesiastes 9:17

The words of wise men are heard in quiet more than the cry of him that rules among fools.

James 3:2

For we all offend in many things. If any man offends not in word, the same is a perfect man, and able also to govern the whole body with restraint.

James 3:18

And the fruit of righteousness is sown in peace unto those that make 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 multitude of words there is no lack of rebellion, but he that refrains his lips is wise.
Proverbs 15:28
The heart of the righteous studies to answer, but the mouth of the wicked pours out evil things.
James 1:19
Therefore, my beloved brethren, let every man be quick to hear, slow to speak, slow to wrath;
James 3:2
For we all offend in many things. If any man offends not in word, the same is a perfect man, and able also to govern the whole body with restraint.

An excellent spirit

Proverbs 16:32
He that is slow to anger is better than the mighty, and he that rules his spirit than he that takes a city.
Ecclesiastes 9:17
The words of wise men are heard in quiet more than the cry of him that rules among fools.
James 3:18
And the fruit of righteousness is sown in peace unto those that make peace.

General references

Proverbs 21:23
Whosoever keeps his mouth and his tongue keeps his soul from troubles.