Proverbs 10:19

Sin does not hide from a multitude of words. The wise controls his lips.

James 3:2

We all stumble in many things. If any do not stumble in word, he is a perfect man, able to restrain (control) the whole body.

James 1:19

You know this, my beloved brothers. But let every man be swift to hear, slow to speak, and slow to anger.

Psalm 39:1

([Psalm of David]) I said: I will guard my ways that I may not sin with my tongue. I will guard my mouth as with a muzzle while the wicked are in my presence.

Ecclesiastes 5:3

Dreams come with many efforts, trials and concerns. Fools speak with too many words.

Proverbs 17:27-28

The man with knowledge restrains his words. A man of understanding has a quiet spirit.

Ecclesiastes 10:13-14

The beginning of the words of his mouth is foolishness. The result 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
The man with knowledge restrains his words. A man of understanding has a quiet spirit.
Psalm 39:1
([Psalm of David]) I said: I will guard my ways that I may not sin with my tongue. I will guard my mouth as with a muzzle while the wicked are in my presence.
James 1:19
You know this, my beloved brothers. But let every man be swift to hear, slow to speak, and slow to anger.
James 3:2
We all stumble in many things. If any do not stumble in word, he is a perfect man, able to restrain (control) the whole body.

General references

Proverbs 13:3
He who keeps his mouth (watches what he says) keeps his life. He who opens wide his lips (speaks thoughtlessly) will have destruction.
Proverbs 21:23
He who guards his mouth and holds his tongue stays out of trouble.