Ecclesiastes 10:3

Yes also, when the fool walks by the way, his understanding fails him, and he says to everyone that he is a fool.

Proverbs 13:16

Every prudent man acts from knowledge, but a fool exposes folly.

Proverbs 18:2

A fool has no delight in understanding, but only in revealing his own opinion.

Proverbs 18:6

A fool's lips come into strife, and his mouth invites beatings.

Ecclesiastes 5:3

For as a dream comes with a multitude of cares, so a fool's speech with a multitude of words.

1 Peter 4:4

They think it is strange that you don't run with them into the same excess of riot, blaspheming:

Treasury of Scripture Knowledge

Summary

Ecclesiastes 10:3

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.

And he

General references

1 Kings 12:8

Proverbs 14:33

Proverbs 17:28

Bible References

And he

For as a dream comes with a multitude of cares, so a fool's speech with a multitude of words.

Every prudent man acts from knowledge, but a fool exposes folly.

A fool has no delight in understanding, but only in revealing his own opinion.

They think it is strange that you don't run with them into the same excess of riot, blaspheming:

General references

But he forsook the counsel of the old men which they had given him, and took counsel with the young men who had grown up with him, who stood before him.

Wisdom rests in the heart of one who has understanding, and is even made known in the inward part of fools.

Even a fool, when he keeps silent, is counted wise. When he shuts his lips, he is thought to be discerning.