Ecclesiastes 10:3

Even when the fool walks along the road, he lacks sense; he tells everyone [that] he is a fool.

Proverbs 13:16

Anyone who is clever will act with intelligence, but the fool will display folly.

Proverbs 18:2

A fool will not take pleasure in understanding, but in expressing his heart.

Proverbs 18:6

The lips of a fool will bring strife, and his mouth calls out for a flogging.

Ecclesiastes 5:3

For a dream comes with many cares, and the voice of a fool with many words.

1 Peter 4:4

with respect to which they are surprised [when] you do not run with [them] into the same flood of dissipation, [and so they] revile [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 many cares, and the voice of a fool with many words.
Proverbs 13:16
Anyone who is clever will act with intelligence, but the fool will display folly.
Proverbs 18:2
A fool will not take pleasure in understanding, but in expressing his heart.
1 Peter 4:4
with respect to which they are surprised [when] you do not run with [them] into the same flood of dissipation, [and so they] revile [you].

General references

1 Kings 12:8
But he rejected the advice of the old men, which they gave him, and he consulted with the youngsters who had grown up with him, who were {serving} before him.
Proverbs 14:33
In the heart of him who has understanding, wisdom rests, but [even] in the midst of fools it becomes known.
Proverbs 17:28
Even a fool who keeps silent {shall be considered wise}; he who closes his lips [is] intelligent.