Proverbs 10:19

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

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 1:19

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

Psalm 39:1

I said, I will take heed to my ways that I sin not with my tongue: I will keep my mouth with a bit while the wicked is against me.

Ecclesiastes 5:3

For out of much preoccupation comes the dream, and the voice of the fool out of a multitude of words.

Proverbs 17:27-28

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

Ecclesiastes 10:13-14

The beginning of the words of his mouth is foolishness, and the end of his talk is mischievous madness.

Treasury of Scripture Knowledge

Summary

In the multitude of words there wanteth not sin: but he that refraineth his lips is wise.

General references

Bible References

But

Proverbs 17:27
He who has knowledge spares his words, and a man of understanding is of an excellent spirit.
Psalm 39:1
I said, I will take heed to my ways that I sin not with my tongue: I will keep my mouth with a bit while the wicked is against me.
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.

General references

Proverbs 13:3
He that keeps his mouth keeps his life: but he that opens his lips often shall have calamity.
Proverbs 21:23
Whosoever keeps his mouth and his tongue keeps his soul from troubles.