Proverbs 12:23


A shrewd man is reluctant to display his knowledge [until the proper time],
But the heart of [over-confident] fools proclaims foolishness.

Proverbs 13:16


Every prudent and self-disciplined man acts with knowledge,
But a [closed-minded] fool [who refuses to learn] displays his foolishness [for all to see].

Proverbs 15:2


The tongue of the wise speaks knowledge that is pleasing and acceptable,
But the [babbling] mouth of fools spouts folly.

Proverbs 11:13


He who goes about as a gossip reveals secrets,
But he who is trustworthy and faithful keeps a matter hidden.

Proverbs 10:14


Wise men store up and treasure knowledge [in mind and heart],
But with the mouth of the foolish, ruin is at hand.

Proverbs 10:19


When there are many words, transgression and offense are unavoidable,
But he who controls his lips and keeps thoughtful silence is wise.

Ecclesiastes 10:3

Even when a fool walks along the road, his [common] sense and good judgment fail him and he demonstrates to everyone that he is a fool.

Ecclesiastes 10:12-14

The words of a wise man’s mouth are gracious and win him favor, but the lips of a fool consume him;

Treasury of Scripture Knowledge

Summary

A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.

General references

Bible References

A prudent

Proverbs 10:19

When there are many words, transgression and offense are unavoidable,
But he who controls his lips and keeps thoughtful silence is wise.
Proverbs 11:13

He who goes about as a gossip reveals secrets,
But he who is trustworthy and faithful keeps a matter hidden.
Proverbs 13:16

Every prudent and self-disciplined man acts with knowledge,
But a [closed-minded] fool [who refuses to learn] displays his foolishness [for all to see].

But

Proverbs 15:2

The tongue of the wise speaks knowledge that is pleasing and acceptable,
But the [babbling] mouth of fools spouts folly.
Ecclesiastes 10:3
Even when a fool walks along the road, his [common] sense and good judgment fail him and he demonstrates to everyone that he is a fool.

General references

Proverbs 14:33

Wisdom rests [silently] in the heart of one who has understanding,
But what is in the heart of [shortsighted] fools is made known.
Proverbs 29:11

A [shortsighted] fool always loses his temper and displays his anger,
But a wise man [uses self-control and] holds it back.