Ecclesiastes 10:3

Even when the fool walks on the road, he lacks sense, and he says to everyone that he is a fool.

Proverbs 13:16

In everything the prudent acts with knowledge, but a fool flaunts his folly.

Proverbs 18:2

A fool takes no pleasure in understanding, but only in expressing his opinion.

Proverbs 18:6

A fool's lips walk into a fight, and his mouth invites a beating.

Ecclesiastes 5:3

For a dream comes with much business, and a fool's voice with many words.

1 Peter 4:4

With respect to this they are surprised when you do not join them in the same flood of debauchery, and they malign you;

Treasury of Scripture Knowledge

Summary

Yea also, when he that is a fool walketh by the way, his wisdom faileth him, and he saith to every one that he is a fool.

Bible References

And he

Ecclesiastes 5:3
For a dream comes with much business, and a fool's voice with many words.
Proverbs 13:16
In everything the prudent acts with knowledge, but a fool flaunts his folly.
Proverbs 18:2
A fool takes no pleasure in understanding, but only in expressing his opinion.
1 Peter 4:4
With respect to this they are surprised when you do not join them in the same flood of debauchery, and they malign you;

General references

1 Kings 12:8
But he abandoned the counsel that the old men gave him and took counsel with the young men who had grown up with him and stood before him.
Proverbs 14:33
Wisdom rests in the heart of a man of understanding, but it makes itself known even in the midst of fools.
Proverbs 17:28
Even a fool who keeps silent is considered wise; when he closes his lips, he is deemed intelligent.

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.