Proverbs 10:19

In the multitude of words there wanteth not transgression; but he that restraineth his lips doeth wisely.

James 3:2

For we all often offend. If any one offend not in word, he is a perfect man, able to bridle the whole body too.

James 1:19

So that, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath;

Psalm 39:1

{To the chief Musician, to Jeduthun. A Psalm of David.} I said, I will take heed to my ways, that I sin not with my tongue: I will keep my mouth with a muzzle, while the wicked is before me.

Ecclesiastes 5:3

For a dream cometh through the multitude of business, and a fool's voice through a multitude of words.

Proverbs 17:27-28

He that hath knowledge spareth his words; and a man of understanding is of a cool spirit.

Ecclesiastes 10:13-14

The beginning of the words of his mouth is folly; 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 that hath knowledge spareth his words; and a man of understanding is of a cool spirit.
Psalm 39:1
{To the chief Musician, to Jeduthun. A Psalm of David.} I said, I will take heed to my ways, that I sin not with my tongue: I will keep my mouth with a muzzle, while the wicked is before me.
James 1:19
So that, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath;
James 3:2
For we all often offend. If any one offend not in word, he is a perfect man, able to bridle the whole body too.

General references

Proverbs 13:3
He that guardeth his mouth keepeth his soul; destruction shall be to him that openeth wide his lips.
Proverbs 21:23
Whoso keepeth his mouth and his tongue keepeth his soul from troubles.